title: U.S. government views on the Declaration of Helsinki.
mesh_terms: D002986:Clinical Trials as Topic; D035061:Control Groups; D003906:Developing Countries; D017408:Guidelines as Topic; D006381:Helsinki Declaration; D006805:Human Experimentation; D006801:Humans; D010919:Placebos; D012107:Research Design; D014481:United States
chemical_list: D010919:Placebos