Protozoal colitis in horses.
D000818:Animals; D003092:Colitis / Q000175:diagnosis / Q000469:parasitology / Q000662:veterinary*; D006734:Horse Diseases / Q000469:parasitology*; D006736:Horses; D007411:Intestinal Diseases, Parasitic / Q000175:diagnosis / Q000469:parasitology / Q000662:veterinary*; D011528:Protozoan Infections / Q000175:diagnosis / Q000469:parasitology; D011529:Protozoan Infections, Animal; D014318:Tritrichomonas / Q000302:isolation & purification