1. Department of Environmental Medicine Kurume University School of Medicine Kurume Japan
2. Section of Emergency and Critical Care Medicine Urasoe General Hospital Urasoe Japan
3. International Diving Education and Research Laboratory Kunigami‐gun Japan
4. Diving Emergency Network Okinawa Kunigami‐gun Japan
5. Section of Gastroenterological Surgery Urasoe General Hospital Urasoe Japan
6. Section of Surgery Urasoe General Hospital Urasoe Japan