title: Toxic effect of ciodrin and dichlorvos applied topically to horses and their efficacy against internal parasites.
mesh_terms: D000818:Animals; D006734:Horse Diseases / Q000188:drug therapy*; D006736:Horses; D007306:Insecticides / Q000633:toxicity*; D007411:Intestinal Diseases, Parasitic / Q000662:veterinary*; D009349:Nematode Infections / Q000188:drug therapy / Q000662:veterinary*
chemical_list: D007306:Insecticides