[Relationships between retention of afterbirth and difficult birth in cattle].
D000818:Animals; D002007:Brucellosis, Bovine / Q000150:complications; D002417:Cattle; D005260:Female; D005313:Fetal Death; D008431:Maternal-Fetal Exchange; D007744:Obstetric Labor Complications / Q000662:veterinary*; D010922:Placenta Diseases / Q000209:etiology / Q000662:veterinary; D049590:Postpartum Period; D011247:Pregnancy; D011248:Pregnancy Complications / Q000209:etiology / Q000662:veterinary*; D013997:Time Factors
Beziehungen zwischen Nachgeburtsverhaltung und Schwergeburt beim Rind.