Persistence of the anthelmintic activity of ivermectin in calves.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy*; D005767:Gastrointestinal Diseases / Q000188:drug therapy / Q000662:veterinary*; D007559:Ivermectin; D007783:Lactones / Q000627:therapeutic use*; D008297:Male; D009349:Nematode Infections / Q000188:drug therapy / Q000662:veterinary*; D013320:Strongyloidea; D013997:Time Factors
D007783:Lactones; D007559:Ivermectin