title: Transplacental transmission of Protostrongylus spp. in bighorn sheep.
mesh_terms: D000818:Animals; D005260:Female; D005315:Fetal Diseases / Q000662:veterinary*; D008431:Maternal-Fetal Exchange; D009349:Nematode Infections / Q000662:veterinary*; D011247:Pregnancy; D012756:Sheep; D012757:Sheep Diseases