1. Centre for Gastric Cancer, National Cancer Centre , Goyang , Korea
2. Department of Surgery, Yonsei University College of Medicine , Seoul , Korea
3. Department of Surgery, Seoul National University Hospital , Seoul , Korea
4. Department of Surgery, Chonnam National University Hwasun Hospital , Gwangju , Korea
5. Department of Surgery, Samsung Medical Centre, Sungkyunkwan University School of Medicine , Seoul , Korea
6. Department of Surgery, Yeouido St Mary’s Hospital, Catholic University of Korea , Seoul , Korea
7. Department of Surgery, Seoul National University Bundang Hospital , Seongnam , Korea
8. Department of Surgery, Keimyung University Dongsan Medical Centre , Daegu , Korea
9. Department of Surgery, Ajou University School of Medicine , Suwon , Korea
10. Department of Surgery, Dong-A University Hospital , Busan , Korea
11. Department of Surgery, Soonchunhyang University Bucheon Hospital , Bucheon , Korea
12. Department of Surgery, Incheon St Mary’s Hospital, Catholic University of Korea , Incheon , Korea
13. Department of Surgery, Chung-Ang University Hospital , Seoul , Korea
14. Department of Surgery, Nowon Eulji Medical Centre, Eulji University , Seoul , Korea