1. Department of Public Health, Tuberculosis Program, First Health Cluster, Riyadh, Saudi Arabia Email: drmedahmed@gmail.com
2. President and CEO of Sahel Oncology LLC, Orange Coast Medical Center of Hope Inc. 496 Old Newport Blvd. #7 Newport Beach, CA 92612, USA
3. Department of Research and Development, General Directorate of Medical Consultations, Ministry of Health, Riyadh, Saudi Arabia
4. Department of Dentistry, The British University in Egypt, Cairo, Egypt
5. Department of Pharmacology, Faculty of Pharmacy, Sohag University, Sohag, Egypt
6. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
7. Department of chemistry and biochemistry, Faculty of Science, Damietta, University, Egypt