1School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
2Department of Health Education and Health Promotion, School of Health, North Khorasan University of Medical Sciences, Bojnurd, Iran
3Department of Epidemiology and Biostatistics, School of Health, North Khorasan University of Medical Sciences, Bojnurd, Iran
4Department of Orthopedic Surgery, North Khorasan University of Medical Sciences, Bojnurd, Iran
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