1. Division of Thoracic and Cardiovascular Surgery, New Taipei Municipal TuCheng Hospital, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
2. Division of Thoracic and Cardiovascular Surgery, Chiayi Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
3. Microbiology Research and Treatment Center, Chiayi Chang Gung Memorial Hospital, Puzi City 613, Taiwan