Document Type : RESEARCH PAPER
1 Orthopedic Research Center, Department of Orthopedic Surgery, Imam Reza Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
2 Orthopedic Research Center Department of Orthopedic Surgery Imam Reza Hospital, Faculty of Medicine Mashhad University of Medical Science, Mashhad, Iran.
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