1. Department of Medical Genetics, King Faisal Specialist Hospital & Research Centre; Riyadh Saudi Arabia
2. College of Medicine, Alfaisal University; Riyadh Saudi Arabia
3. Clinical and Metabolic Genetics, Department of Pediatrics, Hamad Medical Corporation; Qatar
4. Department of Genetics, King Faisal Specialist Hospital & Research Centre; Riyadh Saudi Arabia
5. Sultan Qabous Hospital; Oman