1. 1nstitute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University; Taipei Taiwan
2. Department of Gastroenterology; Ren-Ai Branch; Taipei City Hospital Taipei Taiwan
3. Division of Gastroenterology, Department of Internal Medicine; National Taiwan University Hospital and Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine; Taipei Taiwan
4. Liver Research Unit; Chang Gung Memorial Hospital, Chang Gung University College of Medicine; Taipei Taiwan
5. Faculty of Medicine; National Yang-Ming University School of Medicine; Taipei Taiwan
6. Division of Gastroenterology, Department of Medicine; Cheng Hsin General Hospital; Taipei Taiwan
7. Division of Biostatistics and Bioinformatics; Institute of Population Health Sciences, National Health Research Institutes; Zhunan Taiwan