1. Pediatric Pulmonology, Hamad Medical Corporation; Doha Qatar
2. Internal Medicine, Hamad Medical Corporation; Doha Qatar
3. Medical Research Center, Hamad Medical Corporation; Doha Qatar
4. Laboratory Medicines and Pathology; Hamad Medical Corporation, Clinical Biochemistry Division; Doha Qatar
5. Pediatric endocrinology, Hamad Medical Corporation; Doha Qatar