University Clinic of Pediatrics and Medical Genetics of the National Hospital and University Center Hubert K. MAGA of Cotonou;
Cotonou;
Benin;
Pediatric of the University and Departemental Hospital Center of Ouémè-Plateau;
Porto-Novo;
Benin;
Pediatric Ward of the Lagoon Mother and Child University Hospital Center of Cotonou;
Cotonou;
Benin.;