1. Department of community health nursing, School of Nursing and Midwifery Shahid Beheshti University of Medical Sciences Tehran Iran
2. School of Nursing and Midwifery Shahid Beheshti University of Medical Sciences Tehran Iran
3. Behavioral Sciences Research Center Life Style Institute, Baqiyatallah University of Medical Sciences Tehran Iran
4. Research Center for Life & Health Sciences & Biotechnology of the Police Direction of Health, Rescue & Treatment, Police Headquarter Tehran Iran
5. Nursing and Midwifery School Shahid Beheshti University of Medical Sciences Tehran Iran
6. Department of Health Care Sciences, Palliative Research Center Marie Cederschiöld Högskola, Campus Ersta Stockholm Sweden
7. Community Health Nursing Department, School of Nursing and Midwifery Shahid Beheshti University of Medical Sciences Tehran Iran