1. Department of Physical Medicine and Rehabilitation, Gunesli Medicine Hospital: Hoca Ahmet Yesevi cad. No:149 Bagcılar, Istanbul, Turkey
2. Department of Physical Medicine and Rehabilitation, Memorial Hizmet Hospital, Turkey
3. Department of Biostatistics, Biruni University Medical Faculty, Turkey
4. Department of Orthopedics and Traumatology, Memorial Hizmet Hospital, Turkey