1 Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea.
2 Department of Orthopaedic Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan, Korea.
3 Department of Anatomy, School of Medicine, Pusan National University, Yangsan, Korea.
4 Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital and School of Medicine, Pusan National University, Busan, Korea.
5 Department of Nuclear Medicine, Chung-Ang University College of Medicine, Seoul, Korea.