1. Department of Anesthesiology and Reanimation, Cerrahpasa Medical Faculty, Istanbul University, 34098 Istanbul, Turkey
2. Department of Orthopaedics and Traumatology, Sariyer Ismail Akgun Public Hospital, 34473 Istanbul, Turkey
3. Department of Orthopaedics and Traumatology, Istanbul Bilim University Medical Faculty, 34349 Istanbul, Turkey
4. Department of Biostatistics and Medical Informatics, Bezmialem Vakif University Medical Faculty, 34093 Istanbul, Turkey