1. Department of Data Science, Biostatistics Section, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
2. Department of Nuclear Medicine, Kawasaki Medical School, Okayama, Japan
3. Department of Clinical Biostatistics, Graduate School of Medicine Kyoto University, Kyoto, Japan
4. Public Health Research Foundation, Tokyo, Japan
5. Department of Oral and Maxillofacial Radiology, School of Dentistry, Matsumoto Dental University, Nagano, Japan
6. Department of Orthopaedic Surgery and Rheumatology, Nara Hospital, Kindai University, Nara, Japan
7. Bone and Joint Surgery, Seirei Hamamatu General Hospital, Shizuoka, Japan
8. School of Health Science, Tottori University faculty of Medicine, Tottori, Japan
9. Eikokai Ono Hospital, Hyogo, Japan
10. International Medical Center, Fujita Health University, Aichi, Japan
11. Japan Osteoporosis Foundation, Tokyo, Japan
12. Department of Internal Medicine, Research Institute and Practice for Involutional Diseases, Nagano, Japan