1. Clinical Genetics Department, Human Genetics and Genome Research DivisionNational Research Centre Cairo Egypt
2. Human Cytogenetics Department, Human Genetics and Genome Research DivisionNational Research Centre Cairo Egypt
3. Department of GeneticsKing Faisal Specialist Hospital and Research Center Riyadh Saudi Arabia
4. Saudi Human Genome ProgramKing Abdulaziz City for Science and Technology Riyadh Saudi Arabia
5. Department of Anatomy and Cell BiologyCollege of Medicine, Alfaisal University Riyadh Saudi Arabia