1. 1Department of Neonatal Intensive Care, Mother and Children Hospital, Nouakchott, Mauritania
2. 2Department of Cardiovascular Surgery, National Center of Cardiology, Cité Universitaire, Nouakchott, Mauritania
3. 3Department of Pediatric Surgery, Mother and Children Hospital, Nouakchott, Mauritania
4. 4Department of Radiology, National Center of Cardiology, Cité Universitaire, Nouakchott, Mauritania
5. 5Department of Pediatric Cardiology, Cité Universitaire, National Center of Cardiology, Nouakchott, Mauritania
6. 6Department of Internal Medicine and Endocrinology, National Hospital of Nouakchott, Nouakchott, Mauritania
7. 7Department of Obstetrics, Mother and Children Hospital, Nouakchott, Mauritania