Yonsei University - Department of Surgery, Cancer Center, Korea - Dongnam Institute of Radiological and Medical Sciences, Ajou University, Gyeongsang National University - College of Medicine, Soonchunhyang University - School of Medicine, Chonnam National University, Chonnam National University, Gyeongsang National University - College of Medicine, Yonsei University - Department of Surgery, Gyeongsang National University - College of Medicine, National Cancer Center, Korea - Center for Gastric Cancer, National Cancer Center, Korea - Center for Gastric Cancer, National Cancer Center, Korea - Center for Gastric Cancer, National Cancer Center, Korea - Center for Gastric Cancer, National Cancer Center, Korea, Institute of Advanced Clinical and Biomedical Research, National Cancer Center, Korea - Center for Gastric Cancer and Independent