1. Department of Health Education and Promotion, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran
2. Maragheh University of Medical Sciences, Maragheh, Iran
3. Department of Medicine, Temetry Faculty of Medicine, University of Toronto, Toronto, ON, Canada
4. Nursing Care Research Center, School of Nursing and Midwifery, Iran University of Medical Sciences, Tehran, Iran