Comments by the Spanish Society for Paediatric Cardiology and Congenital Heart diseases on the recommendations by the Spanish Neonatology Society as regards screening for critical congenital heart diseases in the neonatal period - Pérez-Lescure Picarzo J; Rueda Nuñez F; Centeno Malfaz F; Rojo Sombrero H (Anales De Pediatria, 2018)