Isabel Rosário Periquito1, Tânia Marques2, Sofia Lima3, Marta Ferreira2. 1. Department of Pediatrics, Centro Hospitalar de Setúbal, Setúbal, Portugal. 2. Department of Neonatology, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal. 3. Department of Pediatric Surgery, Hospital Prof. Doutor Fernando Fonseca, Amadora, Portugal.