title: Is informed consent in research sometimes optional?
authors.forename: Miriam
authors.initials: M
authors.lastname: Shuchman
mesh_terms: D035843:Biomedical Research / Q000941:ethics* / Q000331:legislation & jurisprudence*; D002170:Canada; D033161:Government Regulation; D006801:Humans; D007258:Informed Consent / Q000331:legislation & jurisprudence*; D014481:United States