1. Unaizah College of Medicine, Qassim University, Unaizah, Kingdom of Saudi Arabia
2. University of Bahrain, Sakheer, Kingdom of Bahrain
3. College of Medicine, Qassim University, Buraidah, Kingdom of Saudi Arabia.Kingdom of Saudi Arabia
4. College of Medicine, Al-Imam Mohammad Ibn Saud Islamic University, Riyadh, Kingdom of Saudi Arabia
5. College of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates