1. Department of Pharmacology and Toxicology, College of Pharmacy Taibah University Madinah Kingdom of Saudi Arabia
2. Ohud Hospital Madinah Kingdom of Saudi Arabia
3. Department of Pharmacy Ohud Hospital Madinah Kingdom of Saudi Arabia
4. Infection Control Unit, Ohud Hospital Madinah Kingdom of Saudi Arabia
5. Dental Specialized Center, Ohud Hospital Madinah Kingdom of Saudi Arabia
6. Medical Laboratory, Ohud Hospital Madinah Kingdom of Saudi Arabia
7. Department of Medical Laboratory Technology College of Applied Medical Sciences, Taibah University Madinah Kingdom of Saudi Arabia