Aichi Cancer Center, Chulalongkorn University, Chulalongkorn University, Chulalongkorn University, Ajou University School of Medicine, Ajou University, Ajou University, National Cancer Center Hospital, National Cancer Center Hospital, National Cancer Center Hospital, Aichi Cancer Center, Capital Medical University, Capital Medical University, National Tsing Hua University, National Tsing Hua University, National University of Singapore (NUS) - Singapore General Hospital, National University of Singapore (NUS) - Singapore General Hospital, The Chinese University of Hong Kong (CUHK) - Department of Surgery, The Chinese University of Hong Kong, Prince of Songkla University, Chiang Mai University, University of the Philippines, Manila - Philippine General Hospital, University of the Philippines, Manila - Philippine General Hospital, Sengkang General Hospital and Sengkang General Hospital