1. Clinical Research Institute for Endocrinology and Metabolic Diseases, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan
2. Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Hospital, Sendai 980-8574, Japan
3. Department of Diabetes, Endocrinology and Metabolism, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
4. Department of Surgery II, Tokyo Women’s Medical University, Tokyo 162-8666, Japan
5. Department of Endocrinology and Hypertension, Tokyo Women’s Medical University, Tokyo 162-8666, Japan
6. Department of Endocrinology and Metabolism, National Hospital Organization Kyoto Medical Center, Kyoto 612-8555, Japan
7. Department of Metabolism and Endocrinology, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, Yokohama 241-0811, Japan
8. Department of Endocrine and Metabolic Diseases, Kyushu University Hospital, Fukuoka 812-8582, Japan
9. Department of Molecular Diagnosis, Chiba University Graduate School of Medicine, Chiba 260-8670, Japan
10. Department of Urology and Andrology, Kansai Medical University Hospital, Hirakata 573-1191, Japan
11. National Hospital Organization, Higashinagoya National Hospital, Nagoya 465-8620, Japan
12. Department of Medicine and Molecular Science, Gunma University Graduate School of Medicine, Maebashi 371-8511, Japan
13. Ono Pharmaceutical Co., Ltd., Osaka 541-8564, Japan
14. Faculty of Medicine, University of Tsukuba, Tsukuba 305-8577, Japan