1. Division of Diabetes and Metabolism The Institute for Adult Diseases Asahi Life Foundation Tokyo Japan
2. Department of Endocrinology, Diabetes, and Geriatric Medicine Akita University Graduate School of Medicine Akita Japan
3. Department of Pharmacotherapy Meiji Pharmaceutical University Tokyo Japan
4. Department of Public Health and Environmental Medicine The Jikei University School of Medicine Tokyo Japan
5. Department of Diabetes and Endocrinology Shin‐yurigaoka General Hospital Kawasaki Japan