1. Department of Radiology, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daejeon 301-723, Korea.
2. Department of Orthopedic Surgery, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daejeon 301-723, Korea.
3. Department of Pathology, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daejeon 301-723, Korea.
4. Department of Rehabilitation Medicine, Daejeon St. Mary's Hospital, The Catholic University of Korea, Daejeon 301-723, Korea.