1. Umm Al Qura University, Al Abdeyah, Makkah, Saudi Arabia
2. College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
3. College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
4. College of Medicine, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
5. College of Medicine, Umm Al-Qura University, Mecca, Saudi Arabia