The First Surgical Department, Hokkaido University, School of Medicine

The First Surgical Department, Hokkaido University, School of Medicine

The First Surgical Department, Hokkaido University, School of Medicine

The First Surgical Department, Hokkaido University, School of Medicine

The First Surgical Department, Hokkaido University, School of Medicine

The First Surgical Department, Hokkaido University, School of Medicine

The First Surgical Department, Hokkaido University, School of Medicine

The First Surgical Department, Hokkaido University, School of Medicine

The First Surgical Department, Hokkaido University, School of Medicine