The physiological explanation of split parturition in the pig and other mammalian species.
D000818:Animals; D002417:Cattle; D036861:Delivery, Obstetric / Q000662:veterinary; D005314:Embryonic and Fetal Development; D004971:Estrus; D005260:Female; D005836:Genitalia, Female / Q000033:anatomy & histology; D006168:Guinea Pigs; D006801:Humans; D051379:Mice; D049590:Postpartum Period; D011247:Pregnancy; D011270:Pregnancy, Animal; D011272:Pregnancy, Multiple; D011817:Rabbits; D051381:Rats; D012377:Rodentia; D012756:Sheep; D013476:Superfetation; D013552:Swine; D013997:Time Factors