1. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Gezira, Gezira, Sudan
2. Faculty of Dentistry, British University, El Sherouk City, Egypt
3. Operations Sales Department, United Pharmaceuticals & Medical Supply Co. Ltd, Al Madinah Al-Munawwarah, Saudi Arabia
4. Pharmaceutical Care Services, Medical Department, Private Sector, Tabuk, Saudi Arabia
5. Pharmaceutical Company, Medical Department, Private Sector, Al Madinah Al-Munawwarah, Saudi Arabia
6. College of Pharmacy, Taibah University, Medina, Saudi Arabia
7. Preparatory Year Program, Batterjee Medical College, Jeddah, Saudi Arabia
8. Medical Claims Department, Bupa Arabia, Prince Saud AlFaisal, Jeddah, Saudi Arabia
9. Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
10. Preparatory Year Program, Department of Chemistry, Batterjee Medical College, Jeddah, Saudi Arabia
11. Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, Egypt