[1] Mashhad Univ Med Sci, Dept Emergency Med, Fac Med, Mashhad, Razavi Khorasan, Iran
[2] Mashhad Univ Med Sci, Orthoped Res Ctr, Mashhad, Razavi Khorasan, Iran
[3] Mashhad Univ Med Sci, Dept Epidemiol & Biostat, Social Determinants Hlth Res Ctr, Mashhad, Razavi Khorasan, Iran