1. M.D Assistant professor, and Head, Department of Radiology and Medical Imaging, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
2. MBBS Radiology Resident, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
3. M.D, Assistant professor, and Consultant, Department of pediatrics, Prince Sattam University, Alkharj, Saudi Arabia.
4. M.D Professor and consultant (Retired), King Saud University, Riyadh, Saudi Arabia.