Anthelmintic resistance.
D000818:Animals; D000871:Anthelmintics / Q000627:therapeutic use*; D004352:Drug Resistance, Microbial; D006734:Horse Diseases / Q000188:drug therapy*; D006736:Horses; D009348:Nematoda; D009349:Nematode Infections / Q000188:drug therapy / Q000662:veterinary*; D010271:Parasites
D000871:Anthelmintics