1. Division of Environmental Medicine and Population Sciences, Department of Social and Environmental Medicine, Graduate School of Medicine; Osaka University; Suita Osaka Japan
2. Department of Critical Care Nursing; Kyoto University Graduate School of Human Health Science; Kyoto Japan
3. Kyoto University Health Service; Kyoto Japan
4. Toyonaka City Fire Department; Toyonaka Japan
5. Iseikai Hospital; Osaka Japan
6. Department of Emergency Medicine; Teikyo University School of Medicine; Tokyo Japan