1. Department of Pathology and Laboratory Medicine (MBC-10), King Faisal Specialist Hospital and Research Center (KFSH&RC), P.O. Box 3354, Riyadh 11211, Saudi Arabia
2. Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Center (KFSH&RC), Jeddah, Saudi Arabia
3. Department of Radiology, King Faisal Specialist Hospital and Research Center (KFSH&RC), Jeddah, Saudi Arabia