Affiliation: | 1. Rheumatology and Rehabilitation Department Faculty of Medicine Cairo University & Dr. Erfan and Bagedo General Hospital Jeddah, KSA., Jeddah, Egypt;2. Department of Radiology, Cairo University, Cairo, Egypt;3. Radiology Department Faculty Ain Shams University & Dr. Erfan and Bagedo General Hospital, Cairo, Egypt;4. Department of Public Health, Cairo University, Cairo, Egypt;5. University Twente, Enschede, Netherlands |