title: Anthelmintic resistance of nematodes in sheep flocks in South America.
authors.forename: P J
authors.initials: PJ
authors.lastname: Waller
authors.forename: F
authors.initials: F
authors.lastname: Echevarria
authors.forename: C
authors.initials: C
authors.lastname: Eddi
authors.forename: S
authors.initials: S
authors.lastname: Maciel
authors.forename: A
authors.initials: A
authors.lastname: Nari
authors.forename: J W
authors.initials: JW
authors.lastname: Hansen
mesh_terms: D000818:Animals; D000871:Anthelmintics / Q000494:pharmacology / Q000627:therapeutic use*; D004351:Drug Resistance; D009348:Nematoda / Q000187:drug effects*; D009349:Nematode Infections / Q000188:drug therapy / Q000469:parasitology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000188:drug therapy* / Q000469:parasitology; D013020:South America
chemical_list: D000871:Anthelmintics