1. National Taiwan University College of Medicine; Taipei Taiwan
2. Yonsei University College of Medicine; Seoul Korea
3. Chang-Gung Memorial Hospital, Kee-Lung Branch; Keelung Taiwan
4. Pusan National University Yangsan Hospital; Busan Korea
5. Kaohsiung Medical University Hospital; Kaohsiung Medical University; Kaohsiung Taiwan
6. Seoul National University; College of Medicine, Seoul National University Bundang Hospital; Seongnam Korea
7. National Taiwan University Hospital; Taipei Taiwan
8. Samsung Medical Center; Sungkyunkwan University School of Medicine; Seoul Korea