1. Department of Epidemiology; UCLA Fielding School of Public Health; Los Angeles California USA
2. Genomics Research Center; Academia Sinica; Taipei Taiwan
3. Institute of Clinical Medicine; National Yang-Ming University; Taipei Taiwan
4. Roche Diagnostics, Ltd; Basel Switzerland
5. Department of Gastroenterology; Chang-Gung Memorial Hospital; Kaohsiung Taiwan
6. MacKay Medical College; New Taipei City Taiwan
7. Department of Public Health, College of Medicine; Catholic Fu-Jen University; New Taipei City Taiwan
8. Graduate Institute of Epidemiology and Preventative Medicine, College of Public Health; National Taiwan University; Taipei Taiwan