1. Department of Molecular Oncology, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia.
2. Department of Medicine, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia.
3. Department of Pathology & Laboratory Medicine, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia.
4. Laboratory for Cellular and Molecular Thyroid Research, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
5. Department of Pediatrics, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia.