1. Kocatepe University Medical School, Department of Orthopedics and Traumatology, Afyon, Turkey
2. Numune Education Hospital, Orthopedics Clinic, Ankara, Turkey
3. Bayindir Private Hospital Ankara, Department of Orthopedics and Traumatology, Ankara, Turkey
4. Cumhuriyet University Medical School, Department of Orthopedics and Traumatology, Sivas, Turkey