1. Department of Epidemiology and Preventive Medicine; Ehime University Graduate School of Medicine; Toon Ehime Japan
2. Department of Internal Medicine; Yawatahama General City Hospital; Yawatahama Ehime Japan
3. Department of Internal Medicine; Matsuyama Shimin Hospital; Matsuyama Ehime Japan
4. Department of Internal Medicine; Saiseikai Matsuyama Hospital; Matsuyama Ehime Japan
5. Department of Gastroenterology and Metabology; Ehime University Graduate School of Medicine; Toon Ehime Japan
6. Department of Public Health; Juntendo University School of Medicine; Hongo Tokyo Japan
7. Department of Internal Medicine; Ehime Central Hospital; Matsuyama EHime Japan
8. Department of Internal Medicine; Saiseikai Saijo Hospital; Saijo Ehime Japan
9. Department of Internal Medicine; Ehime Niihama Hospital; Niihama Ehime Japan
10. Department of Internal Medicine; Saiseikai Imabari Hospital; Imabari Ehime Japan
11. Department of Lifestyle-Related Medicine and Endocrinology; Ehime University Graduate School of Medicine; Toon Ehime Japan