1. Rheumatology Ward of Loghman Hakim Hospital Shahid Beheshti University of Medical Sciences Tehran Iran
2. Department of Adult Rheumatology, Loghman Hakim Hospital, School of Medicine Shahid Beheshti University of Medical Sciences Tehran Iran
3. Research Centre of Loghman Hakim Hospital Shahid Beheshti University of Medical Sciences Tehran Iran
4. Department of Adult Internal Medicine Naft Grand Hospital Ahvaz Iran
5. Clinical Research Development Center, Imam Reza Hospital Kermanshah University of Medical Sciences Kermanshah Iran