1. Shahid Beheshti University of Medical Sciences, Tehran, Iran
2. Department of Health Care Sciences, Palliative Care Center, Marie Cederschiöld Högskola, Stockholm, Sweden
3. Deparment of Community Health Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4. Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
5. Deparment of Medical-Surgical Nursing, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran
6. Community Based Psychiatric Care Research Center, Shiraz University of Medical Sciences, Shiraz, Iran