1. Akhtar Orthopedic Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2. Center of Orthopedic Trans-Disciplinary Applied Research, Tehran University of Medical Sciences, Tehran, Iran
3. Orthopedic Surgery, Poursina Hospital Orthopaedic Research Center, Guilan University of Medical Sciences, Rasht, Iran
4. Department of Orthopaedic and Trauma Surgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
5. Bone and Joint Disease Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
6. Department of Orthopedic Surgery, University of Minnesota, Minneapolis, Minnesota, USA