title: [Swiftly and well . . . but not always].
authors: Lina
authors: L
authors: Carvalho
mesh_terms: D000757:Anencephaly / Q000196:embryology*; D047108:Embryonic Development / Q000502:physiology*; D004627:Embryonic Induction / Q000502:physiology; D005333:Fetus / Q000002:abnormalities*; D006801:Humans; D013724:Teratoma / Q000196:embryology; D014427:Twins; D014428:Twins, Conjoined / Q000196:embryology*