1. Emergency Department Okayama Saiseikai General Hospital OkayamaJapan
2. Department of Emergency, Critical Care, and Disaster Medicine Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences OkayamaJapan
3. Department of Emergency and Critical Care Medicine St. Marianna University School of Medicine KanagawaJapan
4. Department of Emergency and Critical Care Medicine Tokyo Bay Urayasu Ichikawa Medical Center ChibaJapan
5. Emergency and Critical Care Medical Center Osaka City General Hospital OsakaJapan
6. Department of Emergency and Critical Care Medicine Shimane Prefectural Central Hospital ShimaneJapan
7. Department of Emergency and Critical Care Medicine Chiba University Graduate School of Medicine Chiba Japan