1. Department of Surgery, Dankook University Hospital, Cheonan, Korea.
2. Gastric Cancer Center, Kyungpook National University Chilgok Hospital, Daegu, Korea.
3. Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
4. Department of Surgery, Keimyung Univsity School of Medicine, Daegu, Korea.
5. Department of Surgery, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea.
6. Department of Surgery, Ajou University School of Medicine, Suwon, Korea.
7. Department of Surgery, Pusan National University Yangsan Hospital, Yangsan, Korea.
8. Department of Surgery, Bucheon St. Mary's Hospital, Bucheon, Korea.
9. Department of Surgery, Korea Cancer Center Hospital, Seoul, Korea.
10. Department of Surgery, Konyang University Hospital, Daejeon, Korea.
11. Department of Surgery, Korea University College of Medicine, Seoul, Korea.
12. Department of Surgery, Incheon St. Mary's Hospital, Incheon, Korea.
13. Department of Surgery, Jeju National University Hospital, Jeju, Korea.