Department of Surgery, Hiroshima Red Cross Hospital and Atomic-Bomb Survivors Hospital, Hiroshima, 730-0052, Japan

Kyohei Yugawa MD, PhD, Takashi Maeda MD, PhD, Shigeyuki Nagata MD, PhD, Akihiro Sakai MD, Makoto Edagawa MD, PhD, Takahiro Omine MD, PhD, Takuro Kometani MD, PhD,  Shohei Yamaguchi MD, PhD, Kozo Konishi MD, PhD & Kenkichi Hashimoto MD, PhD