Chemotherapy of equine leukemia with amethopterin.
D000818:Animals; D006734:Horse Diseases / Q000188:drug therapy*; D006736:Horses; D007945:Leukemia, Lymphoid / Q000188:drug therapy / Q000662:veterinary*; D008727:Methotrexate / Q000627:therapeutic use*
D008727:Methotrexate