New diagnostic approach for colovesical fistulas.
D003108:Colonic Diseases / Q000175:diagnosis*; D003113:Colonoscopy; D003558:Cystoscopy; D003973:Diatrizoate; D006801:Humans; D007412:Intestinal Fistula / Q000175:diagnosis*; D001747:Urinary Bladder Fistula / Q000175:diagnosis*
D003973:Diatrizoate