Scivner, L H Possible "self cure" mechanism in ovine ostertagiasis. [electronic resource] - Journal of the American Veterinary Medical Association Dec 1967 - 1447-8 p. digital Publication Type: Journal Article ISSN: 0003-1488 Subjects--Topical Terms: AnimalsSheepSheep Diseases--immunologyTrichostrongyloidiasis--immunology