1. Department of Health Information and Studies, Directorate General of Health Services, North Batinah Governorate, Ministry of Health, Liwa, Sultanate of Oman
2. Department of Family Medicine and Public Health, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Sultanate of Oman.
3. Road safety Research Program, The Research Council, Muscat, Sultanate of Oman
4. Department of Behavioral Medicine, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Sultanate of Oman
5. Centre for Accident Research and Road Safety-Queensland, Queensland University of Technology, Brisbane, Australia