title: DEVELOPMENTAL BIOLOGY. Human embryo research confronts ethical 'rule'.
authors.forename: Patrick
authors.initials: P
authors.lastname: Monahan
mesh_terms: D026688:Bioethical Issues; D002454:Cell Differentiation; D015509:Developmental Biology / Q000941:ethics*; D033041:Embryo Research / Q000941:ethics*; D004622:Embryo, Mammalian / Q000166:cytology; D005307:Fertilization in Vitro / Q000941:ethics*; D006801:Humans; D013997:Time Factors