1. The Student Research Committee, School of Nursing and Midwifery, Shahroud University of Medical Sciences, Shahroud, Iran
2. School of Nursing and Midwifery, Shahroud University of Medical Sciences, Shahroud, Iran
3. Department of Epidemiology, School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran
4. Nursing Research Center, Golestan University of Medical Sciences, Gorgan, Iran
5. Center for Health-Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran