1. Faculty of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
2. Faculty of Medicine, Department of Internal Medicine, Division of Rheumatology, Hacettepe University, Ankara, Turkey
3. Faculty of Medicine, Department of Bioistatistics, Hacettepe University, Ankara, Turkey
4. Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, Eastern Mediterranean University, Famagusta, Turkey