1. Division of Gastroenterology, Department of Internal Medicine; Pao-Chien Hospital; Pingtung Taiwan
2. Nursing Department; Pao-Chien Hospital; Pingtung Taiwan
3. Division of Gastroenterology, Department of Internal Medicine; Kaohsiung Armed Forces General Hospital; Kaohsiung Taiwan
4. Department of Internal Medicine; National Defense Medical Center; Taipei Taiwan
5. Division of Gastroenterology, Department of Internal Medicine; Yuan Sheng Hospital; Changhua Taiwan