1. Surgen General, Air Staff Office, Japan Air Self Defense Force, Ministry of Defense, Tokyo, Japan
2. Department of Clinical Research Medicine, Teikyo University School of Medicine, Tokyo, Japan
3. Department of Emergency and Intensive Care, Tsuchiura Kyodo General Hospital, Tsuchiura, Ibaraki, Japan
4. Medical Squadron, Air Base Group, 7th Air Wing, Central Air Defense Force, Air Defense Command, Japan Air Self Defense Force, Ministry of Defense, Omitama, Ibaraki, Japan
5. Hyperbaric Oxygen Therapy Division, Department of Emergency Medicine, Kameda General Hospital, Kamogawa, Chiba, Japan