1 Physical and Rehabilitation Medicine Training and Research Center, Ankara Bilkent City Hospital, Ankara Şehir Hastanesi FTR Hastanesi, Üniversiteler Mahallesi, 1604. Cadde No: 9, Bilkent/Çankaya/Ankara, Turkey. fevunsal@hotmail.com.
2 Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey.