1Division of Nephrology and Endocrinology, The University of Tokyo Hospital, Tokyo, Japan
2Osteoporosis Center, The University of Tokyo Hospital, Tokyo, Japan
3Toranomon Hospital Endocrine Center, Toranomon Hospital, Tokyo, Japan
4Division of Endocrinology and Metabolism, Department of Internal Medicine, Gunma University Graduate School of Medicine, Maebashi, Japan
5First Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan
6Department of Geriatric Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
7Endocrine Center, Okayama University Hospital, Okayama, Japan
8Department of Diabetology and Endocrinology, Kanazawa Medical University, Kahoku, Japan
9Department of Endocrinology, Diabetes and Metabolism, Fujita Health University, Toyoake, Japan
10Fujii Memorial Institute of Medical Sciences, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan
11Department of Musculoskeletal Oncology, National Cancer Center Hospital East, Kashiwa, Japan