1. School of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran
2. Department of Community Health Nursing, School of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran
3. Nursing and Midwifery Care Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
4. Department of Pediatric Nursing, School of Nursing and Midwifery, Mashhad University of Medical Sciences, Mashhad, Iran
5. Department of Biostatistics and Epidemiology, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran