*Correspondence to:
Yi-Wen Huang, M.D., Ph.D.
Associate Professor,
Division of Gastroenterology and Hepatology,
Department of Internal Medicine,
Taipei Medical University Hospital &
School of Medicine, College of Medicine,
Taipei Medical University
No. 252, Wuxing St, Xinyi District,
Taipei City, 110, Taiwan
Tel.: +8862-27372181
E-mail:yiwenhuang@tmu.edu.tw