Hyogo Medical University, Wakayama Medical University, Wakayama Medical University, Kansai Medical University, Nara Medical University School of Medicine - Department of Surgery, Nagoya University, Kindai University, University of Toyama, Shimane University, Hiroshima University Graduate School of Biomedical and Health Sciences - Department of Surgery, Osaka Metropolitan University, Kagoshima University, Tokyo Medical University, Kumamoto University, Kyoto Prefectural University, Kyushu University, Wakayama Medical University, Wakayama Medical University, Wakayama Medical University and Showa University

Kansai Medical University, Kurume University, University of Toyama, Nagoya University, Nagoya University, Kindai University, Hiroshima University, Kansai Medical University, Kansai Medical University, Kansai Medical University, University of Toyama, University of Toyama, University of Toyama - Department of Surgery and Science, Nagoya Central Hospital, Wakayama Medical University, Nagoya University, Nagoya University, Kindai University, Kindai University, Hiroshima University, Hiroshima University Graduate School of Biomedical and Health Sciences - Department of Surgery, Hokkaido University, Tokyo Medical University, Kyoto Prefectural University of Medicine - Department of Molecular-Targeting Prevention and Kansai Medical University