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5. U.S. Department of Health and Human Services, HHS.gov, Office for Human Research Protections. 45 CFR 46. Code of Federal Regulations. Title 45. Public Welfare. Department of Health and Human Services. Part 46. Protection of Human Subjects. Revised January 15, 2009. Effective July 14, 2009. Subpart A. Basic HHS Policy for Protection of Human Research Subjects. 2009. https://www.hhs.gov/ohrp/regulations-and-policy/regulations/45-cfr-46/ . Accessed 21 Jun 2017.