title: The puzzle of profound respect.
authors.forename: D
authors.initials: D
authors.lastname: Callahan
mesh_terms: D026683:Advisory Committees; D033421:Beginning of Human Life; D001675:Bioethics; D035843:Biomedical Research; D033041:Embryo Research; D004622:Embryo, Mammalian; D017041:Ethics Committees / Q000592:standards*; D006806:Human Rights; D006801:Humans; D019369:Life; D028681:Moral Obligations; D009316:National Institutes of Health (U.S.); D028723:Personhood; D012106:Research / Q000331:legislation & jurisprudence / Q000592:standards*; D018570:Risk Assessment; D014481:United States; D026712:Value of Life