title: Research Ethics Committee: mandatory necessity. Requirement needed.
authors.forename: Michel Pompeu Barros de Oliveira
authors.initials: MP
authors.lastname: Sá
authors.forename: Ricardo de Carvalho
authors.initials: Rde C
authors.lastname: Lima
mesh_terms: D035843:Biomedical Research / Q000331:legislation & jurisprudence / Q000592:standards*; D001938:Brazil; D028744:Ethics Committees, Research / Q000592:standards*; D032984:Ethics, Research; D006801:Humans; D010506:Periodicals as Topic / Q000592:standards*