1. Deparment of Internal Medicine, Pusan National University School of Medicine, Medical Research Institute, Pusan National University Hospital, Busan, Korea.
2. Deparment of Internal Medicine, Inje University School of Medicine, Pack Hospital, Busan, Korea.
3. Deparment of Radiology, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Korea.
4. Deparment of Orthopedic surgery, Pusan National University School of Medicine, Pusan National University Hospital, Busan, Korea.