title: Lessons from multiple pregnancies in mammals.
mesh_terms: D000818:Animals; D001135:Armadillos; D001163:Arteriovenous Anastomosis / Q000002:abnormalities; D002417:Cattle; D002678:Chimera; D004200:Diseases in Twins; D005260:Female; D005611:Freemartinism / Q000235:genetics; D006064:Gonadotropins, Equine; D006330:Heart Defects, Congenital; D006801:Humans; D008297:Male; D008322:Mammals / Q000196:embryology / Q000502:physiology*; D011247:Pregnancy; D011272:Pregnancy, Multiple; D013480:Superovulation / Q000187:drug effects; D014429:Twins, Dizygotic
chemical_list: D006064:Gonadotropins, Equine