title: The Declaration of Helsinki: an update on paragraph 30.
authors.affiliation: Office of Ethics, Canadian Medical Association, 1867 Alta Vista Dr., Ottawa ON K1G 3Y6. jeff.blackmer@cma.ca
authors.forename: Jeff
authors.initials: J
authors.lastname: Blackmer
authors.forename: Henry
authors.initials: H
authors.lastname: Haddad
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000188:drug therapy; D000349:Africa; D017408:Guidelines as Topic; D006297:Health Services Accessibility; D006381:Helsinki Declaration; D006805:Human Experimentation / Q000331:legislation & jurisprudence*; D006801:Humans; D007258:Informed Consent; D007391:International Cooperation; D010919:Placebos; D035862:Vulnerable Populations; D014944:World Health Organization
chemical_list: D010919:Placebos