title: Nematodirus helvetianus epidemiology.
authors.forename: R D
authors.initials: RD
authors.lastname: Hollands
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000469:parasitology*; D005243:Feces / Q000469:parasitology; D009349:Nematode Infections / Q000469:parasitology / Q000662:veterinary*; D013696:Temperature