First Department of Surgery, Hokkaido University School of Medicine

First Department of Surgery, Hokkaido University School of Medicine

First Department of Surgery, Hokkaido University School of Medicine

First Department of Surgery, Hokkaido University School of Medicine

First Department of Surgery, Hokkaido University School of Medicine

First Department of Surgery, Hokkaido University School of Medicine

First Department of Surgery, Hokkaido University School of Medicine

Department of Radiology, Hokkaido University School of Medicine