1. Faculty of Medicine, University of Bakht Alruda, Ad Duwaym
2. Faculty of Medicine, University of Khartoum
3. Faculty of Medicine, Kafrelsheik University, Kafr El-Sheikh, Egypt
4. Faculty of Medicine, Al-Quds University, Jerusalem, Palestine
5. Al Shaab Teaching Hospital
6. Faculty of Medicine, University of Ibn Sina, Khartoum
7. Faculty of Medicine, University of Aleppo, Aleppo, Syria
8. College of Medicine, Sulaiman Alrajhi University, Albukayriah, Al-Qassim, Saudi Arabia
9. College of Medicine, Hadhramout University, Hadhramout, Yemen
10. Faculty of Medicine, Wad Medani Collage of Medical Sciences, Wad Medani
11. University of Bakht Alruda, Ad Duwaym
12. College of Health Sciences, Gulf Medical University, UAE
13. University of Sinnar, Sinnar
14. Faculty of Medicine, Shendi University, Shendi, Sudan