- Human subject research
Human subject research (HSR), or human subject use (HSU) involves the use of human beings as research subjects. It is an important part of
medical research, and many people volunteer for clinical trials of medical treatments. People also volunteer to be subjects for experiments in basic medical science and biology, as well as social and behavioral (psychological) research.
They are many examples throughout history of human research subjects being treated unethically, and there are therefore many requirements, guidelines, and procedures in place today to ensure similar events are not repeated. Requirements and guidelines exist at the national, academic, and scientific community levels.
Some experiments involve the testing of cosmetic products or ingredients on humans instead of animals. In some notable cases, doctors have performed experiments on themselves, when they have been unwilling to risk the lives of others. This is known as
Human experimentation and
research ethicsevolved over time. This section depicts past atrocities that led to the strict policies that are in place today. On occasion, the subjects of human experimentation have been prisoners, slaves, or even family members. In some notable cases, doctors have performed experiments on themselves when they have been unwilling to risk the lives of others. This is known as self-experimentation.
Systematic experimentation and
quantificationwere introduced into the study of physiologyin 1025, by the influential Persian Muslim physician, Avicenna(Ibn Sina), in " The Canon of Medicine" ("Al-qanun fi al-tibb").Katharine Park (March 1990). "Avicenna in Renaissance Italy: The Canon and Medical Teaching in Italian Universities after 1500" by Nancy G. Siraisi", "The Journal of Modern History" 62 (1), p. 169-170.quote|"Students of the history of medicine know him for his attempts to introduce systematic experimentation and quantification into the study of physiology".] He also introduced the use of biomedical research,Citation
title=The Rise of Early Modern Science: Islam, China, and the West
Cambridge University Press
clinical trials,David W. Tschanz, MSPH, PhD (August 2003). "Arab Roots of European Medicine", "Heart Views" 4 (2).] randomized controlled trials,Jonathan D. Eldredge (2003), "The Randomised Controlled Trial design: unrecognized opportunities for health sciences librarianship", "Health Information and Libraries Journal" 20, p. 34–44  .] Bernard S. Bloom, Aurelia Retbi, Sandrine Dahan, Egon Jonsson (2000), "Evaluation Of Randomized Controlled Trials On Complementary And Alternative Medicine", "International Journal of Technology Assessment in Health Care" 16 (1), p. 13–21  .] drug tests and efficacytestsD. Craig Brater and Walter J. Daly (2000), "Clinical pharmacology in the Middle Ages: Principles that presage the 21st century", "Clinical Pharmacology & Therapeutics" 67 (5), p. 447-450  .] Walter J. Daly and D. Craig Brater (2000), "Medieval contributions to the search for truth in clinical medicine", "Perspectives in Biology and Medicine" 43 (4), p. 530–540  , Johns Hopkins University Press.] on human subjects.
Human dissections were carried out by
Ibn Zuhr(Avenzoar), [http://encyclopedia.farlex.com/Islamic+medicine Islamic medicine] , " Hutchinson Encyclopedia".] who introduced the use of experimention in surgeryduring the 12th century,Rabie E. Abdel-Halim (2005), "Contributions of Ibn Zuhr (Avenzoar) to the progress of surgery: A study and translations from his book Al-Taisir", "Saudi Medical Journal 2005; Vol. 26 (9): 1333-1339".] Rabie E. Abdel-Halim (2006), "Contributions of Muhadhdhab Al-Deen Al-Baghdadi to the progress of medicine and urology", "Saudi Medical Journal" 27 (11): 1631-1641.] as well as Ibn Tufail[Jon Mcginnis, "Classical Arabic Philosophy: An Anthology of Sources", p. 284, Hackett Publishing Company, ISBN 0872208710.] and Saladin's physician Ibn Jumay in the 12th century, Abd-el-latifin 1200,Emilie Savage-Smith (1996), "Medicine", pp. 951-2, in Harv|Morelon|Rashed|1996|pp=903-962] and Ibn al-Nafisin the 13th century.Dr. Sulaiman Oataya (1982), "Ibn ul Nafis has dissected the human body", "Symposium on Ibn al-Nafis", Second International Conference on Islamic Medicine: Islamic Medical Organization, Kuwait ( cf.[http://www.islamset.com/isc/nafis/index.html Ibn ul-Nafis has Dissected the Human Body] , "Encyclopedia of Islamic World").]
Early Modern Times
HSR experiments were recorded during vaccination trials in the 1700s. In these early trials, physicians used themselves or their slaves as test subjects. Experiments on others were often conducted without informing the subjects of dangers associated with such experiments.
A famous example of such research were the
Edward Jennerexperiments, in which he first tested smallpoxvaccines on his son and neighbourhood children. In an instance of self-experimentation, Johann Jorgswallowed 17 drugs in various doses to record their properties. Conversely, the famous scientist Louis Pasteur"agonized over treating humans," though he was confident of previous results obtained through animal trials. He consented to treat a human only when he was convinced that the death of his first test subject, the child Joseph Meister, "appeared inevitable." (Rothman 1993)
Early 20th Century
In the 1900s, as the progress of medicine began to accelerate, the concept of the various codes of ethics of scientific disciplines changed dramatically, and the treatment of research subjects along with it.
Walter Reed's well-known experiments to develop an inoculationfor yellow feverled these advances. Reed's vaccineexperiments were carefully scrutinized, however, unlike earlier trials. (Brady 1982)
HSR has also been performed on subjects without informed consent, both covertly and under coercion. The pretext of medical experimentation has been used as a justification for some atrocities. From 1932 until the 1970s, in the United States, citizens were experimented upon in the
Tuskegee Study of Untreated Syphilis in the Negro Male.
De-classified documents of the National Archives revealed that during the 1930s and 1940s, the
British Armyused hundreds of British and native British Indian Armysoldiers as “ guinea pigs” in their experiments to determine if mustard gasinflicted greater damage on Indian skin compared to British skin. [ [http://www.voanews.com/english/2007-09-02-voa11.cfm Report: Britain Tested Chemical Weapons on Indian Colonial Troops] Voice of America 2 September, 2007] [ [http://www.thenews.com.pk/daily_detail.asp?id=70674 Indian soldiers used as guinea pigs during British Raj] September 2, 2007The News, Internationl, Pakistan] [ [http://www.thehindu.com/2007/09/02/stories/2007090257861800.htm When Indians were guinea pigs] The Hindu Times September 2, 2007] [ [http://www.upi.com/NewsTrack/Top_News/2007/09/01/indian_troops_were_part_of_wwii_gas_tests/8114/ Indian Troops Were Part of WWII Gas Tests] UPI September 1, 2007]
econd Sino-Japanese War and World War II
Japan, Unit 731, located near Harbin( Manchukuo), experimented with prisoner vivisection, dismemberment and induced epidemics on a very large scale from 1932 onward through the Second Sino-Japanese war. With the expansion of the empire during World War II, many other units were implemented in conquered cities such as Nanking( Unit 1644), Beijing( Unit 1855), Guangzhou( Unit 8604) and Singapore( Unit 9420). After the war, Supreme commander of occupation Douglas MacArthurgave immunity in the name of the United Statesto all members of the units in exchange for a tiny part of the results, so that in post-war Japan, Shiro Ishiiand others continued to hold honoured positions. The United Statesblocked Sovietaccess to this information. However, some unit members were judged by the Sovietsduring the Khabarovsk War Crime Trials. The effects were lasting and China is still working to counteract the effects of buried pathogen caches.Fact|date=February 2007
During the second
World War, Nazi human experimentationoccurred in Germanywith particular bias towards euthanasia. At the war's conclusion, 23 Nazi doctors and scientists were tried for the murderof concentration campinmates who were used as research subjects. Of the 23 professionals tried at Nuremberg, 15 were convicted. Seven of them were condemned to death by hangingand eight received prison sentences from 10 years to life. Eight professionals were acquitted. (Mitscherlich 1992)
The result of these proceedings was the
Nuremberg Code. It includes the following guidelines, among others, for researchers:: Informed consent is essential.: Research should be based on prior animal work.: The risks should be justified by the anticipated benefits.: Research must be conducted by qualified scientists.: Physical and mental suffering must be avoided.: Research in which death or disabling injury is expected should not be conducted.
In 1940 in the
United States, four hundred prisoners in Chicagowere infected with malariato study the effects of new and experimental drugsfor the disease Fact|date=January 2008. Beginning in 1942, mustard gasexperiments were conducted on 4,000 United States servicemen in order to study the effects on the human nervous systemFact|date=January 2008. These tests concluded in 1945 Fact|date=January 2008.
Fort Detrick in Maryland was the headquarters of US biological warfare experiments. Operation Whitecoat involved the injection of infectious agents to observe their effects in human subjects. [ [http://news.bbc.co.uk/2/hi/programmes/file_on_4/4701196.stm BBC NEWS | Programmes | File on 4 | Hidden history of US germ testing ] ]
After World War II
Vipeholm experiments, where retardedtest subjects were exposed to large amounts of sugarto induce dental caries
* United States:
MKULTRA, Tuskegee syphilis experiment ( The Public Health Service Syphilis Study), hepatitisexperiments on children at Willowbrook State School, Jewish Chronic Disease Study(1963), San Antonio Contraception Study(1971), Tea Room Trade Study, Obedience to Authority Study( Milgram Study), dermatological experiments on prisoners at Holmesburg Prisonin Philadelphia(see Hornblum 1998), and human radiation experiments.
* United Kingdom: (voluntary) human experimentation at
Porton Downin the 1950s, leading to the death of Ronald Maddison
* Pharmaceutical giant
Pfizercame under fire in 2001 for allegedly testing meningitisdrugs on African children. [http://news.bbc.co.uk/1/hi/world/africa/1465532.stm]
In the United States
Numerous experiments were done on prisoners throughout the US. Many prisoners eventually filed lawsuits and these actions brought about many more investigations and suits against doctors, hospitals and pharmaceutical companies. [http://www.inthesetimes.com/article/1373/the_prison_as_laboratory/] Experiments included high-risk cancer treatments, the application of strong skin creams, new cosmetics, dioxin and high doses of LSD. Many incidents were documented in government reports, ACLU findings and various books including Acres of Skin by Allen M. Hornblum. The
Stateville Penitentiary Malaria Studyis one of many examples. "The Plutonium Files", for which Eileen Welsome won a Pulitzer Prize, documents the early human tests of the toxicity of plutonium and uranium on people. [Michael Sherry. [http://www.nytimes.com/books/99/12/12/reviews/991212.12sherryt.html Human Guinea Pigs] . "New York Times".]
The CIA ran an extensive toxicology and chemical/biological warfare program in cooperation with the US military. The Edgewood Arsenal and US Army Medical Research Institute for Infectious Diseases at Fort Detrick in Maryland were the main headquarters for such studies. At such centres, the agency developed many toxins, incapacitants, mind-altering substances and carcinogens. The CIA allegedly attempted to use toxins to assassinate
Fidel Castroand other world leaders such as General Abdul Karim Quassimof Iraq and Patrice Lumumbaof the Congo who nationalized Congo's mineral mines Fact|date=January 2008. Mind-control substances were studied to facilitate interrogation and toxins were used as weapons in assassination. One of the toxins that the CIA studied extensively was derived from red algae called dinoflagellatewhich produces the red tideFact|date=January 2008.
MK-ULTRAproject was a CIA run human experiment program where prisoners and unwitting subjects were administered hallucinogenic drugs in attempt to develop incapacitating substances and chemical mind control agents, in an operation run by Sidney Gottlieb. Biological-weapons specialist Frank Olson's drink was spiked with LSD by Sidney Gottlieb in November 1953. He became psychotic and chronically depressed and suicided by jumping from the roof of his hotel ten days later. [cite book |title= "Brainwash: The Secret History Of Mind Control" |last= Streatfeild |first= Dominic |year= 2006 |publisher= Hodder & Stoughton Ltd |location= London |isbn= 9780340831618]
In Pinochet's Chile
Human experimentation was carried on in
Colonia Dignidad, headed by ex-Nazi Paul Schäferand used as a concentration camp by the DINA, Augusto Pinochet's secret police, according to March 2005 declarations by former CIA and DINA agent Michael Townley. These experimentations would have been carried out on detainees, with the cooperation of the DINA, the Bacteriological War Army Laboratory located in Colonia Dignidad, and German occupants of the Colonia Dignidad. [ [http://www.cooperativa.cl/p4_noticias/antialone.html?page=http://www.cooperativa.cl/p4_noticias/site/artic/20050330/pags/20050330114755.html Michael Townley fue interrogado por muerte de Frei Montalva] , " Radio Cooperativa", March 30, 2005 es icon ] (requires additional sources, English language)
Vivisectionhas long been practiced on humanbeings. Herophilos, the "father of anatomy" and founder of the first medical schoolin Alexandria, was described by the church leader Tertullianas having vivisected at least 600 live prisoners. In recent times, the wartime programs of Nazi Dr. Josef Mengele, Shiro Ishii, founder of the Japanese military Unit 731, and Dr. Fukujiro Ishiyamaat Kyushu Imperial University Hospital, conducted human vivisections on concentration campprisoners in their respective countries during World War II[cite book |title= "A Plague Upon Humanity" |last= Barenblatt |first= Daniel |year= 2003 |publisher= HarperCollins |location= London |isbn= 0060933879] .Fact|date=February 2008
In November 2006, Doctor Akira Makino confessed to Kyodo news having performed surgery and amputations on condemned prisoners, including women and children in 1944 and 1945 while he was stationed on
Mindanao. ["Japanese doctor admits POW abuse", http://news.bbc.co.uk/2/hi/americas/6185442.stm] In 2007, Doctor Ken Yuasa testified to the "Japan Times" that he believes at least 1,000 persons working for the Shōwa regime, including surgeons, were involved in vivisections over mainland China. ["I was afraid during my first vivisection, but the second time around, it was much easier. By the third time, I was willing to do it." "Vivisectionnist recalls his day of reckoning", http://search.japantimes.co.jp/cgi-bin/nn20071024w1.html]
Human volunteers can consent to be subjects for invasive experiments which may involve, for example, the taking of tissue samples (
biopsies), or other procedures which require surgery on the volunteer. These procedures must be approved by ethical review, and carried out in an approved manner that minimizes pain and long term health risks to the subject [http://www.health.vic.gov.au/ethics/downloads/module1f_march05.doc] . Despite this, the term is generally recognized as pejorative: one would never refer to life-saving surgery, for example, as "vivisection." The use of the term vivisection when referring to procedures performed on humans almost always implies a lack of consent.Fact|date=February 2008
Declaration of Helsinki
In 1964, the
World Medical Associationdeveloped a code of research ethics that came to be known as the Declaration of Helsinki. It was a reinterpretation of the Nuremberg Code, with an eye to medical research with therapeutic intent. Subsequently, journal editors required that research be performed in accordance with the Declaration. This document set the stage for the implementation of the Institutional Review Board(IRB) process. ( Shamoo& Irving 1993)
In 1966, anaesthesiologist Dr.
Henry K. Beecherwrote an article, "Ethics and Clinical Research," describing 22 examples of research studies with controversial ethics that had been conducted by reputable researchers and published in major journals. Beecher wrote, "Medicine is sound, and most progress is soundly attained..." He believed, however, that if unethical research were not prohibited it would "do great harm to medicine." Beecher provided estimates of the number of unethical studies and concluded "unethical or questionably ethical procedures are not uncommon." (Beecher 1996)
Public Health Service Syphilis Studywas among the most influential in shaping public perceptions of research involving human subjects. When the press exposed the study, the US Congressappointed a panel that determined that the PHS Syphilis Study should be stopped immediately and that overseeing of human research was inadequate. The panel recommended that federal regulations be designed and implemented to protect human research subjects in the future. Subsequently, the National Research Act of 1974 led to regulations now referred to as the "common rule," a group of similar requirements that cover the various forms of clinical research.
In 1974, the United States Congress authorised the formation of the
National Commission for the Protection of Human Subjects in Biomedical and Behavioral Research, known to most people in research ethics as the National Commission. Congress charged the National Commission with the task of identifying the basic ethical principles that affect the decision to use, or to not use, human research subjects. To accomplish this task, the National Commission looked at writings and discussions that had taken place to date and asked, "What are the basic ethical principles that are used to judge the ethics of human subject research?" Congress also asked the National Commission to develop guidelines to assure that human research is conducted in accordance with those principles.
In 1979, the National Commission met and published the
Belmont Report. The Belmont Report is required reading for everyone involved in human experimentation. The Belmont Report identifies three basic ethical principles that underlie human experimentation. These principles are commonly called the Belmont Principles. The Belmont Principles include:
* Respect for persons
The [http://www.cioms.ch/ Council for International Organizations of Medical Sciences] (CIOMS) has written an [http://www.cioms.ch/frame_guidelines_nov_2002.htm International Ethical Guidelines for Biomedical Research Involving Human Subjects] .
APA Ethics Code
The [http://www.apa.org/ American Psychological Association] (APA) has a documented ethics code pertaining to the practice of
Psychologyand associated research. This document contains great guidelines for the use of deception in research. For members of the APA, these are hard requirements levied against their membership. They are also requirements for any research project conducted, funded, or managed by the APA.
US Federal Research
The following policies codify requirements that must be followed for any research conducted or supported by the US Federal Government.
This is the US codifitation of regulated policy based on the guidelines of the Belmont Report. It combines and supersedes previous disparate regulatory codes.;45 CFR 46:Title 45 Code of Federal Regulations, Part 46 (45 CFR 46) is the primary set of Federal regulations regarding the protection of human subjects in research and is often reffered to as the Common Rule. It defines the laws, criteria for exemption, as well as definition and formulation of
Institutional Review Boards (IRBs). Some Government agencies (e.g., DoD, FDA, etc.) have established their own implementation of this code that supersedes portions or all of 45 CFR 46.
;32 CFR 219:This is the Department of Defense (DoD) implementation of 45 CFR 46, Subpart A. Subparts B, C, and D of 45 CFR 46 still apply to DoD supported research. It differs from 45 CFR 46 in the criteria for exemptions.
;21 CFR 50:This is the implementation of the Common Rule by the
Food & Drug Administration(FDA). It applies to research associated with the development of any food, drug, or medical device.
US DoD Research
The following policies are required for any research conducted or supported by the US Department of Defense (DoD).
;DoD Directive 3216.02:This document defines additional requirements for HSR supported by the Department of Defense.
;10 USC 980:Title 10, United States Code, Subtitle A, Part II, Chapter 49, Section 980 (10 USC 980) addresses the limitations on use of humans as experimental subjects. It basically states that funds cannot be deployed prior to obtaining
US Federal Research
Before an institution can conduct or be engaged in any HSR project, it must obtain a
Human Subject Use Assurance. This is approval from the Department of Health and Human Services(HHS) to conduct HSR based on review of the institutions HRPP and their commitment to comply with all applicable requirements and guidelines. This Assurance is then linked to specific Institutional Review Boards (IRBs) that will review each individual research project.
Before a Federally supported HSR project can even begin, it must be approved by an
Institutional Review Board(IRB), and then possibly by the conducting institution, and also possibly by the supporting agency (if it is different than the IRB organization and institution).
This section attempts to explain when HSU policies apply based on the criteria and definitions in the policy documents.
US Federal Research
Is It HSR
Just because a project involves the use of human participants does not mean it constitutes human subject research. The activities must meet the definition of research, and the use of the human participants must meet the definition of human subjects. The definitions are written as such to include situations where the human is the subject of the experiment, their environment is manipulated by the researchers, and data regarding their responses are collected. If the project does not meet the definition of Human Subject Research, then the requirements do not apply, and the project does not require an IRB review or
informed consent. However, it is best to have an IRB make this determination and document the decision.
Is It Exempt From Policies
If a project is defined as Human Subject Research, it may still be considered Exempt. This generally means that the project is minimal risk, and the requirements do not apply. The protocol for the project must meet one of the exempt categories defined in the Common Rule. By definition then, an IRB does not need to perform a full review on the project, and informed consent is not required. However, again, an IRB needs to make this determination and document the decision. In these situations, the guidelines in the Belmont Report should still be followed since it is still Human Subject Research.
* North Korea:
Alleged North Korean human experimentation
Questionable Psychological Experiments
Several experiments have been conducted on consenting volunteers whose ethical nature is now considered questionable. Following exposure of these experiments, rules regarding
informed consenthave been tightened.
Milgram experiment, in which many subjects were shown they were capable of inflicting discomfort (by electric shock) on other humans if under orders to do so
Stanford prison experiment, in which many participants became violent and abusive of each other.
The Monster Studythat was conducted on orphans in 1939 in an attempt to induce stuttering.
;Engaged:An institution is engaged in human subjects research when its employees or agents either:
#intervene or interact with living individuals for research purposes; or
#obtain individually identifiable private information for research purposes (32 CFR 219.102.d-f).
;Exempt:Not subject to HSU policies because it meets one or more of the exemption criteria defined in 32 CFR 219.101.b.
;Human Subject:A living individual about whom an investigator conducting research obtains:
#Data through intervention or interaction with the individual, or
#Identifiable private information (32 CFR 219.102.f).
;Interaction:Communication or interpersonal contact between investigator and subject (32 CFR 219.102.f).
;Intervention:Physical procedures by which data are gathered as well as manipulations of the subject or the subject’s environment that are performed for research purposes (32 CFR 219.102.f).
;Minimal Risk:The probability and magnitude of harm or discomfort anticipated in the research are not greater in and of themselves than those ordinarily encountered in daily life or during the performance of routine physical or psychological examinations or tests (32 CFR 219.102.i).
;Private Information:Individually identifiable information about behavior that occurs in a context in which an individual can reasonably expect that no observation or recording is taking place, and information which has been provided for specific purposes by an individual and which the individual can reasonably expect will not be made public (32 CFR 219.102.f).
;Research: A systematic investigation, including research development, testing and evaluation, designed to develop or contribute to generalizable knowledge (32 CFR 219.102.d).
* Beecher, Henry K. "Ethics And Clinical Research." The New England Journal of Medicine. Vol 274 No. 24,
June 16, 1966, 1354 - 1360
* Brady, Joseph V. and Jonsen, Albert R. "The Evolution of Regulatory Influences on Research with Human Subjects." Human Subjects Research - A Handbook for Institutional Review Boards. Ed. Greenwald, Robert A. "et al." New York: Plenum Press, 1982. 3 - 18
* Mitscherlich, Alexander and Mielke, Fred. "Epilogue: Seven Were Hanged." Ed. Annas, George J and Grodin, Michael A. The Nazi Doctors And The Nuremberg Code - Human Rights in Human Experimentation. New York: Oxford University Press, 1992. 105 - 107
Encyclopedia of the History of Arabic Science
* Rothman, David J. "Ethics and Human Experimentation: Henry Beecher Revisited." The New England Journal of Medicine. Vol. 317, No. 19, Nov.5, 1987 - Public Responsibility in Medicine and Research, Boston,
April 1- 2, 1993
* Shamoo, Adil E. and Irving, Dianne N. "Accountability in Research." 1993 in press - Public Responsibility in M
* Goliszek, Andrew. "In the Name of Science: A History of Secret Programs, Medical Research, and Human Experimentation", St. Martin's Press 2003, ISBN 0-312-30356-4
*Hornblum, Allen. "Acres of Skin: Human Experiments at Holmesburg Prison: A True Story of Abuse and Exploitation in the Name of Medical Science." Routledge, 1998.
* Kevorkian, Jack: "A brief history of experimentation on condemned and executed humans." JAMA 77 (1985) pp.215-226
* Lederer, Susan: "Subjected to science. Human experimentation in America before the Second World War" Baltimore, Maryland: Johns Hopkins University Press 1995
* Moreno, Jonathan D. "Undue Risk: Secret State Experiments on Humans." W H Freeman 1999, Routledge 2001.
* Welsome, Eileen. "The Plutonium Files: America's Secret Medical Experiments in the Cold War." Dell Publishing (Random House), 1999.
Doctors' Trial(Part of the Nuremberg Trials)
H5N1 clinical trials
Japanese human experimentations
Nazi human experimentation
Non-human primate experiments
Military medical ethics
* [http://www.drze.de/themen/blickpunkt/kinderhttp://www.drze.de/themen/blickpunkt/kinder-en?la=en In Focus "Medical Research involving Minors: Medical, legal and ethical aspects" (German Reference Centre for Ethics in the Life Sciences)]
* [http://www.ahrp.org/ Alliance for Human Research Protection]
* [http://www.haaretz.com/hasen/spages/722450.htmo Four Docs Busted For Performing Human Experiments On Elderly Patients]
* [http://www.lfcc.on.ca/ethical.html Ethical Practice: Principles and Guidelines for Research with Vulnerable Individuals and Families] and ethical protocol for social science research developed by the Centre for Children and Families in the Justice System
* [http://www.pbs.org/newshour/bb/health/may97/tuskegee_5-16.html An Apology 65 Years Late]
* [http://www.erowid.org/chemicals/bz/bz_timeline.php BZ Timeline]
* [http://www.ResearchEthics.ca ResearchEthics.ca]
* [http://www.hhs.gov/ohrp/humansubjects/guidance/belmont.htm Belmont Report]
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