Division of Gastroenterology;
Department of Internal Medicine;
Tri-Service General Hospital;
National Defense Medical Center;
Taipei 114;
Taiwan;
Department of Integrated Diagnostics&Therapeutics;
National Taiwan University Hospital;
National Taiwan University College of Medicine;
Taipei 10002;
Taiwan;
Division of Gastroenterology and Hepatology;
Department of Internal Medicine;
National Taiwan University Hospital;
National Taiwan University College of Medicine;
Taipei 114;
Taiwan;
Division of Gastroenterology;
Cheng Hsin General Hospital;
National Defense Medical Center;
Taipei 114;
Taiwan;
Duodenoscope; Working channel; Visual inspection; Microbiological surveillance; Reprocessing; Endoscope reprocessing;