[1] Natl Taiwan Univ Hosp, Dept Internal Med, Taipei 100, Taiwan
[2] Natl Taiwan Univ, Coll Med, Taipei 10764, Taiwan
[3] Natl Cheng Kung Univ Hosp, Dept Internal Med, Tainan 70428, Taiwan
[4] China Med Univ Hosp, Dept Internal Med, Div Gastroenterol, Taichung, Taiwan
[5] Changhua Christian Hosp, Dept Internal Med, Changhua, Taiwan
[6] Taichung Vet Gen Hosp, Dept Internal Med, Taichung, Taiwan
[7] Tzu Chi Gen Hosp, Dept Gastroenterol, Hualien, Taiwan
[8] Kaohsiung Chang Gung Mem Hosp, Dept Internal Med, Div Hepatogastroenterol, Kaohsiung, Taiwan
[9] Chang Gung Univ, Taoyuan, Taiwan
[10] Natl Taiwan Univ, Coll Publ Hlth, Grad Inst Epidemiol, Taipei 10764, Taiwan
[11] Natl Taiwan Univ, Coll Med, Hepatitis Res Ctr, Taipei 10764, Taiwan