1. Assistant Professor of Pediatric Endocrinology, Diabetes Endocrine and Metabolism Pediatric Unit, Pediatric Department, Cairo University, Cairo, Egypt
2. home address: 15 Naser El Thawra street, Haram, 12111 Giza, Egypt, Phone: +2 01225304041
3. Department of Public Health, Cairo University, Cairo, Egypt
4. Pediatric resident at Diabetes Endocrine and Metabolism Pediatric Unit, Cairo University, Cairo, Egypt
5. Professor of Pediatric Endocrinology, Diabetes Endocrine and Metabolism Pediatric Unit, Cairo University, Cairo, Egypt