1. Department of Pediatrics American University of Beirut Medical Center Beirut Lebanon
2. Medical Genetics Unit, Department of pathology and Laboratory Medicine American University of Beirut Medical Center Beirut Lebanon
3. Medical Genetics Unit Saint Joseph University Beirut Lebanon
4. Department of Obstetrics and Gynecology American University of Beirut Medical Center Beirut Lebanon
5. Department of Biochemistry and Molecular Genetics American University of Beirut Medical Center Beirut Lebanon