1. Faculty of Nursing and Midwifery, Arak University of Medical Sciences, Arak, Iran
2. Nursing Faculty, Arak University of Medical Sciences. Arak, Iran
3. Department of Biostatistics and Epidemiology, School of Health, Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
4. Radiation Oncology, Arak University of Medical Sciences, Arak, Iran