1. Yokohama City University Graduate School of Medicine; Department of Pulmonology; Fukuura 3-9, Kanazawa Yokohama Japan 236-0004
2. Center for Public Health Sciences, National Cancer Center, Tokyo, Japan; Metabolic Epidemiology Section, Division of Epidemiology; 5-1-1 Tsukiji, Chuo-ku Tokyo Japan 104-0045
3. St. Luke's International University, Graduate School of Nursing Sciences; Global Health Nursing; 10-1 Akashi-cho Chuo-Ku Tokyo Japan 104-0044