1. Division of Vascular Surgery, Department of Surgery, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia
2. Vascular Surgery Department, King Salman Heart Center, King Fahad Medical City, Riyadh, Saudi Arabia
3. Family Medicine Department, Prince Mohammed bin Abdulaziz Hospital, Riyadh, Saudi Arabia
4. Central Second Health Cluster, Ministry of Health, Riyadh, Saudi Arabia