1. Department of Neonatology Maternidade Daniel de Matos Centro Hospitalar e Universitário de Coimbra Coimbra Portugal
2. Department of Pediatrics Centro Hospitalar de Leiria Hospital de Santo André Leiria Portugal
3. Department of Pediatric Surgery Hospital Pediátrico de Coimbra Centro Hospitalar e Universitário de Coimbra Coimbra Portugal