The endoscopic findings were: hemorrhagic gastritis (7/16, 43, 7%); non-bleeding gastritis (10/16, 62, 5%); bulb-duodenal inflamation (3/16, 18, 7%); gastric ulcer (2/16, 12, 4%); bulb-duodenal ulcer (3/16, 18, 7% and 1/12 cases (8.33%) had positive Clo test.