title: National academies report recommends tighter rules for stem-cell research.
authors: Jeffrey
authors: J
authors: Brainard
mesh_terms: D026683:Advisory Committees; D033041:Embryo Research / Q000941:ethics* / Q000331:legislation & jurisprudence; D004622:Embryo, Mammalian / Q000166:cytology; D033161:Government Regulation; D017408:Guidelines as Topic; D006801:Humans; D013234:Stem Cells; D014481:United States