1. Health Management and Economics Research Center, Health Management Research Institute, Iran University of Medical Sciences, Tehran, Iran
2. Department of Health Economics, School of Health Management and information Sciences, Iran University of Medical Sciences, Tehran, Iran
3. Department of English Language Teaching, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran
4. Department of Health Economics School of Management and Medical Informatics, Tabriz University of Medical Science, Tabriz, Iran
5. Minimally Invasive Surgery Research center, Iran University of Medical Sciences, Tehran, Iran
6. Health Promotion Research Center, Iran University of Medical Sciences, Tehran, Iran