Pathology and epidemiology of conjoined twinning in swine.
D000818:Animals; D002972:Cleft Palate / Q000662:veterinary; D004777:Environment; D005865:Gestational Age; D006824:Hybridization, Genetic; D008923:Missouri; D012621:Seasons; D013312:Stress, Physiological; D013552:Swine; D013553:Swine Diseases / Q000473:pathology; D014428:Twins, Conjoined / Q000145:classification / Q000453:epidemiology / Q000473:pathology / Q000662:veterinary*