[1] Kaohsiung Med Univ, Grad Inst Clin Med, Kaohsiung 807, Taiwan
[2] Kaohsiung Municipal United Hosp, Dept Internal Med, Kaohsiung 804, Taiwan
[3] Kaohsiung Med Univ Hosp, Dept Internal Med, Div Gastroenterol, Kaohsiung 807, Taiwan
[4] Kaohsiung Med Univ, Coll Med, Fac Med, Dept Med, Kaohsiung 807, Taiwan
[5] Kaohsiung Med Univ, Ctr Stem Cell Res, Kaohsiung 807, Taiwan
[6] Kaohsiung Municipal Hsiaokang Hosp, Dept Internal Med, Kaohsiung 812, Taiwan
[7] I Shou Univ, E Da Hosp, Coll Med, Sch Med, Kaohsiung 824, Taiwan
[8] Tzu Chi Univ, Div Gastroenterol, Dept Internal Med, Buddhist Tzu Chi Gen Hosp, Hualien 970, Taiwan
[9] Tzu Chi Univ, Sch Med, Hualien 970, Taiwan
[10] Mackay Mem Hosp, Dept Internal Med, Div Gastroenterol, Taitung Branch, Taitung City 950, Taiwan
[11] Kaohsiung Municipal Cijin Hosp, Dept Internal Med, Kaohsiung 812, Taiwan
[12] Kaohsiung Med Univ, Ctr Infect Dis & Canc Res, Kaohsiung 807, Taiwan
[13] Natl Yang Ming Univ, Dept Internal Med, Div Gastroenterol, Kaohsiung Vet Gen Hosp, Kaohsiung 813, Taiwan