1. Kurashiki Central Hospital; Department of Otolaryngology; 1-1-1 Miwa Kurashiki Okayama Japan 710-8602
2. Kurashiki Central Hospital; Department of General Medicine; 1-1-1 Miwa Kurashiki Okayama Japan 710-8602
3. Kurashiki Central Hospital; Center of Emergency and Critical Care; Miwa 1-1-1 Kurashiki City Okayama Japan
4. St. Luke's International University; Global Health Nursing, Graduate School of Nursing Sciences; 10-1 Akashi-cho Chuo-Ku Tokyo Japan 104-0044