1. Fellowship in Endodontics Program, Department of Restorative Dental Sciences, College of Dentistry Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia
2. Department of Restorative Dental Sciences, College of Dentistry Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia
3. Hamdan Bin Mohammed College of Dental Medicine (HBMCDM) Mohmmed Bin Rashid University of Medicine and Health Sciences (MBRU) Dubai UAE
4. Department of Pathology, College of Medicine Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia
5. Blood Bank, Laboratory Medicine King Fahad University Hospital Al Khobar Saudi Arabia
6. Department of Preventive Dental Sciences, College of Dentistry Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia
7. Department of Biomedical Dental Sciences, College of Dentistry Imam Abdulrahman Bin Faisal University Dammam Saudi Arabia