1. Division of Primary Health Care; Faculty of Medical Sciences; University of Fukui; Fukui Japan
2. Division of General Medicine; Nagoya University Hospital; Nagoya Japan
3. Osaka Center of Family Practice; Osaka Japan
4. Division of Environmental Health; Department of International and Social Medicine; Faculty of Medical Sciences; University of Fukui; Fukui Japan
5. Division of General Internal Medicine; Faculty of Medical Sciences; University of Fukui; Fukui Japan
6. Division of Promotion of Community Medicine; Faculty of Medical Sciences; University of Fukui; Fukui Japan