Lotfi Fahmi Issa1,2, Nagy A. Seleem3, Ali M. Bakheit 1, Ayman Abdel Baky 1, Abdulaziz Fahad Alotaibi4
1Community Medicine Department, College of Medicine, Taif University, Saudi Arabia.
2Department of Public Health and Community Medicine, Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
3Department of Orthopedic and Traumatology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
4Medical student, College of Medicine, Taif University, Saudi Arabia.
