title: Brazil. Tough placebo rules leave scientists out in the cold.
authors.forename: Cassio Leite
authors.initials: CL
authors.lastname: Vieira
mesh_terms: D026688:Bioethical Issues; D001938:Brazil; D018849:Controlled Clinical Trials as Topic / Q000592:standards*; D028744:Ethics Committees, Research; D006801:Humans; D007391:International Cooperation; D010919:Placebos
chemical_list: D010919:Placebos