1. Department of Orthopedic Surgery, Mashhad University of Medical Sciences (MUMS), Imam Reza Hospital, Mashhad, Iran
2. Department of Orthopedics, Imam Khomeini Hospital, Urmia University of Medical Sciences, Urmia, Iran
3. Faculty of Medicine, Mashhad University of Medical Sciences (MUMS), Imam Reza Hospital, Mashhad, Iran
4. Mashhad University of Medical Sciences (MUMS), Mashhad, Iran