1. Department of Biostatistics and Epidemiology, School of Health, NonCommunicable Diseases Research Center Sabzevar University of Medical Sciences Sabzevar Iran
2. Department of Biostatistics and Epidemiology, School of Public Health Tehran University of Medical Sciences Tehran Iran
3. Trauma Research Center Kashan University of Medical Sciences Kashan Iran
4. Sabzevar University of Medical Sciences Sabzevar Iran
5. Department of Biostatistics and Epidemiology, School of Health and Safety Shahid Beheshti University of Medical Sciences Tehran Iran
6. Department of Epidemiology, School of Public Health Iran University of Medical Sciences Tehran Iran
7. Department of Operating Room, School of Allied Medical Sciences Sabzevar University of Medical Sciences Sabzevar Iran
8. Department of Health Education, School of Health Sabzevar University of Medical Sciences Sabzevar Iran
9. Department of Epidemiology and Biostatistics, School of Health, Social Determinants of Health Research Center Birjand University of Medical Sciences Birjand Iran