1. I.R.Iran's National Institute of Health Research Tehran University of Medical Sciences Tehran Iran
2. Department of Health Economics and Management Science Mashhad University of Medical Sciences Mashhad Iran
3. Department of Management Islamic Azad University of North Tehran Branch Tehran Iran
4. Department of Medical Records and Health Information Technology Mashhad University of Medical Sciences Mashhad Iran
5. Department of Anesthesiology Mashhad University of Medical Sciences Mashhad Iran