Observations on the organization of nematode developmental stages present in some natural and experimental infections.
D000018:Abomasum; D000818:Animals; D006376:Helminths / Q000254:growth & development* / Q000302:isolation & purification; D007411:Intestinal Diseases, Parasitic / Q000662:veterinary; D009349:Nematode Infections / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases