1. Health Management and Economics Research Center, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran
2. School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran
3. Department of Medical and Surgical, School of Nursing and Midwifery, Shahrekord University of Medical Sciences, Shahrekord, Iran
4. Department of Medical Emergencies, School of Paramedical, Qom University of Medical Sciences, Qom, Iran