Department of Internal Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa
Yoshio Tamechika
Third Department of Internal Medicine, Tohoku University School of Medicine, Japan
Susumu Yamagata
Third Department of Medicine, Hokkaido University School of Medicine, Sapporo
Masayoshi Namiki
First Department of Surgery, Faculty of Medicine, University of Tokyo, Tokyo
Hisaaki Shimazu
Department of Surgery, Juntendo University School of Medicine, Tokyo
Yozo Watanabe
Department of Surgery, Niigata University School of Medicine, Niigata
Hisashi Matsuki
Department of Medicine, Tokyo Medical College, Tokyo
Shinroku Ashizawa
Second Department of Surgery, The Jikei University School of Medicine, Tokyo
Fusahiro Nagao