1. Division of Endocrinology and Metabolism, Department of Internal Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.
2. Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.
3. Department of Nuclear Medicine and Research Institute for Convergence of Biomedical Science and Technology, Yangsan Pusan National University Hospital, Yangsan, Korea.
4. Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.
5. Department of Family Medicine, Pusan National University School of Medicine, Busan, Korea.
6. Department of Orthopaedic Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.