1. Department of Internal Medicine Uwajima City Hospital Uwajima Ehime Japan
2. Department of Gastroenterology and Metabology Ehime University Graduate School of Medicine Toon Ehime Japan
3. Aira Diabetes and Thyroid Clinic Aira Kagoshima Japan
4. Department of Internal Medicine Matsuyama Shimin Hospital Matsuyama Ehime Japan
5. Department of Lifestyle‐related MedicineEhime University Graduate School of Medicine Toon Ehime Japan
6. Department of Epidemiology and Preventive Medicine Ehime University Graduate School of Medicine Toon Ehime Japan