1. Department of Internal Medicine, Taichung Armed-Forces General Hospital, Taichung, Taiwan, Republic of China
2. Division of Rheumatology/Immunology/Allergy, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China
3. Department of Radiology, Taichung Armed-Forces General Hospital, Taichung, Taiwan, Republic of China