title: What are the effects of the fifth revision of the Declaration of Helsinki?
authors.affiliation: School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Parktown 2193, South Africa. 081stol@chiron.wis.ac.za
authors.forename: S M
authors.initials: SM
authors.lastname: Tollman
authors.forename: H
authors.initials: H
authors.lastname: Bastian
authors.forename: R
authors.initials: R
authors.lastname: Doll
authors.forename: L J
authors.initials: LJ
authors.lastname: Hirsch
authors.forename: H A
authors.initials: HA
authors.lastname: Guess
mesh_terms: D018849:Controlled Clinical Trials as Topic / Q000592:standards; D003906:Developing Countries; D004345:Drug Industry / Q000592:standards; D006381:Helsinki Declaration; D006805:Human Experimentation; D006801:Humans; D038622:Internationality; D010344:Patient Advocacy; D010919:Placebos; D012106:Research / Q000592:standards; D035862:Vulnerable Populations
chemical_list: D010919:Placebos