Division of General Surgery;
Tri-Service General Hospital;
National Defense Medical Center;
National Defense University;
Taipei;
Taiwan;
China;
Division of Gastroenterology and Hepatology;
Department of Internal Medicine;
Tri-Service General Hospital;
National Defense Medical Center;
National Defense University;
Taipei;
Taiwan;
China;
Department of Anesthesiology;
Tfi-Service General Hospital;
National Defense Medical Center;
National Defense University;
Taipei;
Taiwan;
China;
Yee-Zen General Hospital;
Taoyuan;
Taiwan;
China;
Department of Surgery;
Shalu Tungs' Memorial Hospital;
Tai-Chung;
Taiwan;
China;