Yao-Chun Hsu a, b, c, d, Mindie H Nguyen e, f 
a Center for Liver Diseases, E-Da Hospital, Kaohsiung, Taiwan
b School of Medicine, I-Shou University, Kaohsiung, Taiwan
c Division of Gastroenterology, Fu-Jen Catholic University Hospital, New Taipei, Taiwan
d Institute of Biomedical Informatics, National Yang Ming Chiao Tung University, New Taipei, Taiwan
e Department of Medicine, Stanford University Medical Center, Palo Alto, CA 94304, USA
f Department of Epidemiology and Population Health, Stanford University Medical Center, Palo Alto, CA 94304, USA