Department of Gastroenterology and Hepatology;
National Center for Global Health and Medicine;
Shinjuku;
Tokyo 162-8655;
Japan;
Department of Clinical Research and Informatics;
National Center for Global Health and Medicine;
Shinjuku;
Tokyo 162-8655;
Japan;
Department of Gastroenterology and Hepatology;
Kohnodai Hospital;
National Center for Global Health and Medicine;
Ichikawa;
Chiba 272-8516;
Japan;
Colonoscopic; diagnosis; Colonic; diverticulosis; Colonic; diverticular; bleeding; Barium; enema; Receiver; operating; characteristic; area; under; the; curve;