1. Departments of Environmental and Occupational Health, Faculty of Public Health and Health Informatics, Umm Al-Qura University, Alziziah Makkah, Saudi Arabia
2. Departments of Epidemiology, Faculty of Public Health and Health Informatics, Umm Al-Qura University, Alziziah Makkah, Saudi Arabia
3. Departments of Health Management and Hospitals, Faculty of Public Health and Health Informatics, Umm Al-Qura University, Alziziah Makkah, Saudi Arabia