Yi-Wen Huang1,2,3,4, An-Chi Hsieh1, Sien-Sing Yang1,5. 1. Liver Center, Cathay General Hospital Medical Center, Taipei, Taiwan. 2. School of Medicine, Taipei Medical University College of Medicine, Taipei, Taiwan. 3. Division of Gastroenterology, Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan. 4. School of Medicine, China Medical University, Taichung, Taiwan. 5. School of Medicine, Fu-Jen Catholic University College of Medicine, Taipei, Taiwan.