1. Department of Orthopedics, Tri-Service General Hospital and National Defense Medical Center, Taipei, Taiwan, R.O.C.
2. School of Public Health, National Defense Medical Center, Taipei, Taiwan, R.O.C.
3. Division of Rheumatology, Immunology and Allergy, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, R.O.C.
4. Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan, R.O.C.