1. Department of Molecular Oncology, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.
2. Department of Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.
3. Department of Research Center-Jeddah, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.
4. Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.