1. Rheumatology Unit, Department of Medicine, College of Medicine, University of Baghdad, Baghdad, Iraq
2. Rheumatology Unit, Department of Medicine, Baghdad Teaching Hospital, Medical City, Baghdad, Iraq
3. Department of Medicine, College of Medicine, Al-Nahrain University, Baghdad, Iraq
Nizar Abdulateef Jassim, Dina Yasiry, Yasameen Abbass Hummadi