title: A technique for chronic catheterization of the amniotic and allantoic sacs of sheep foetuses.
mesh_terms: D000650:Amnion; D000653:Amniotic Fluid / Q000032:analysis; D000818:Animals; D000831:Animals, Newborn; D002404:Catheterization / Q000662:veterinary*; D005321:Extraembryonic Membranes; D005260:Female; D005313:Fetal Death / Q000662:veterinary; D008722:Methods; D011247:Pregnancy; D012756:Sheep; D012757:Sheep Diseases / Q000401:mortality