Health Management and Economics Research Center, Health Management Research Institute, Iran University of Medical Sciences, Tehran, Iran. Department of Health Services and Health Promotion, School of Health, Occupational Environment Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran. Department of Health Services Management, School of Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran. shamsaie.m@iums.ac.ir. Department of English Language Teaching, School of Health Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran. Psychiatry and Behavioral Sciences Research Center, Addiction Institute, Mazandaran University of Medical Sciences, Sari, Iran. Department of Health Services Management, School of Management and Information Sciences, Iran University of Medical Sciences, Tehran, Iran.