1 Division of Gastroenterology and Hepatology, Department of Internal Medicine, Far Eastern Memorial Hospital, Banciao District, New Taipei City, Taiwan.
2 Department of Surgery, Far Eastern Memorial Hospital, Banciao District, New Taipei City, Taiwan.
3 Division of Gastroenterology and Hepatology, Department of Internal Medicine, Far Eastern Memorial Hospital, Banciao District, New Taipei City, Taiwan; College of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan. Electronic address: [email protected].