1. Department of Family and Community Medicine, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
2. Department of Radiology, King Fahd Hospital of the Univeristy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
3. Department of Family Medicine, King Fahad Specialist Hospital, Dammam, Saudi Arabia