title: Human embryo experiments: societies urge a softer line.
mesh_terms: D033041:Embryo Research; D004622:Embryo, Mammalian / Q000502:physiology*; D004992:Ethics, Medical; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D018587:Oocyte Donation; D011247:Pregnancy; D012106:Research; D012926:Social Control, Formal; D012955:Societies, Medical; D006113:United Kingdom