title: Enterolithiasis in an umbrella cockatoo.
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000209:etiology / Q000473:pathology*; D002137:Calculi / Q000473:pathology / Q000662:veterinary*; D004378:Duodenal Diseases / Q000473:pathology / Q000662:veterinary*; D004380:Duodenal Obstruction / Q000209:etiology / Q000473:pathology / Q000662:veterinary*; D004386:Duodenum / Q000473:pathology; D007413:Intestinal Mucosa / Q000473:pathology; D008297:Male; D010311:Parrots; D011563:Psittaciformes