1. Department of Endocrinology and Diabetes; Yokohama City University Medical Center; Yokohama Japan
2. Department of Endocrinology and Metabolism; Yokohama Medical Center; Yokohama Japan
3. Department of Medicine; Kanazawa Medical Clinic; Yokohama Japan
4. Kaneshiro Medical Clinic; Sagamihara Japan
5. Idogaya Kens Clinic; Yokohama Japan
6. International University of Health and Welfare, Atami Hospital; Atami Japan
7. Saiseikai Yokohama Nanbu Hospital; Yokohama Japan
8. Koiso Clinic; Yokosuka Japan
9. Takahashi Medical Clinic; Fujisawa Japan
10. Department of Ophthalmology; Yokohama City University Medical Center; Yokohama Japan
11. Department of Endocrinology and Metabolism; Yokohama City University School of Medicine; Yokohama Japan