1. Family Health Department, High Institute of Public Health, Alexandria University, Alexandria, Egypt
2. Institute of Public Health, College of Medicine and Health Sciences, United Arab Emirates University, AlAin, Abu Dhabi, UAE
3. Biostatistics, Liverpool John Moores University, Liverpool, UK
4. Department of Medical-Surgical Nursing, College of Nursing, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
5. Department of Instructional Technology and Learning Sciences, Utah State University, Logan, UT, USA
6. Tropical Health Department, High Institute of Public Health, Alexandria University, Alexandria, Egypt