1. Clinical Genetics Department, Human Genetics and Genome Research Division; National Research Centre; Cairo Egypt
2. Human Cytogenetics Department, Human Genetics and Genome Research Division; National Research Centre; Cairo Egypt
3. Pediatrics Department, Faculty of Medicine; Cairo University; Cairo Egypt
4. Chemistry Department, Biochemistry Unit, Faculty of Science; Helwan University; Cairo Egypt
5. Ophthalmic Genetics Department; Research Institute of Ophthalmology; Cairo Egypt
6. Prenatal Diagnosis and Fetal Medicine Department, Human Genetics and Genome Research Division; National Research Centre; Cairo Egypt
7. Orodental Genetics Department, Oral and Dental Research Division; National Research Centre; Cairo Egypt