[1] Natl Univ Singapore Hosp, Dept Internal Med, Singapore, Singapore
[2] Sun Yat Sen Univ, Dept Nursing, Guangzhou, Peoples R China
[3] Wake Forest Sch Med, Dept Internal Med, Winston Salem, NC USA
[4] Atrium Hlth, Dept Gastroenterol & Hepatol, Gastroenterol & Hepatol, Charlotte, NC USA
[5] Sun Yat Sen Univ, Affiliated Hosp 1, Dept Gastroenterol, Guangzhou, Peoples R China
[6] Nanyang Technol Univ, Sch Biol Sci, Biomed Sci & Chinese Med, Singapore, Singapore
[7] China Acad Chinese Med Sci, NMPA Key Lab Clin Res & Evaluat Tradit Chinese Me, Xiyuan Hosp, Beijing, Peoples R China
[8] China Acad Chinese Med Sci, Xiyuan Hosp, Natl Clin Res Ctr Chinese Med Cardiol, Beijing, Peoples R China
[9] China Acad Chinese Med Sci, Xiyuan Hosp, Inst Digest Dis, Beijing, Peoples R China
[10] Natl Univ Singapore Hosp, Dept Med, Div Gastroenterol & Hepatol, Singapore, Singapore
[11] Natl Univ Singapore, Yong Loo Lin Sch Med, Dept Med, Singapore, Singapore