1. Department of Nursing, School of Nursing and Midwifery, Guilan University of Medical Sciences, Rasht, Iran
2. Department of Community Health Nursing, School of Nursing and Midwifery, Guilan University of Medical Sciences, Rasht, Iran
3. Department of Medical-Surgical Nursing, School of Nursing and Midwifery, Guilan University of Medical Sciences, Rasht, Iran
4. Department of Medical-Surgical Nursing, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
5. Department of Biostatistics, School of Health, Guilan University of Medical Sciences, Rasht, Iran
6. Hosseinpour Hospital, Guilan University of Medical Sciences, Rasht, Iran