[1] Acad Sinica, Genom Res Ctr, Taipei 115, Taiwan
[2] China Med Univ Hosp, Mol & Genom Epidemiol Ctr, Beijing, Peoples R China
[3] China Med Univ, Grad Inst Clin Med Sci, Taichung, Taiwan
[4] Natl Yang Ming Univ, Sch Med, MacKay Coll Med, Taipei 112, Taiwan
[5] Natl Yang Ming Univ, Sch Med, Inst Clin Med, Taipei 112, Taiwan
[6] Roche Diagnost, Basel, Switzerland
[7] Chang Gung Mem Hosp, Dept Gastroenterol, Kaohsiung, Taiwan
[8] Natl Taiwan Univ, Grad Inst Epidemiol & Preventat Med, Taipei 10764, Taiwan