1. School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
2. Department of Health Sciences, University of York, York, UK
3. Department of Health Management and Economics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
4. Department of Pharmacy, University of Nebraska Medical Center, Omaha, NE, USA
5. Department of Clinical Pharmacy, College of Pharmacy, University of Medical Sciences, Tehran, Iran