Document Type : Original Article
Authors
1 Trauma Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
2 Master of Biostatistics, Department of Epidemiology and Biostatistics, Faculty of Health, Mashhad University of Medical Sciences, Mashhad, Iran.
3 Teacher, Department of Education, Khorramabad, Iran.
4 Teacher, Department of Education, Tehran, Iran.
Abstract
Keywords