Usefulness of lung ultrasound in the diagnosis and follow-up of respiratory diseases in neonates Lorena Rodeño Fernández; Rebeca Gregorio Hernández; Iker Serna Guerediaga; Jon Montero Gato; Javier Rodríguez Fanjul; Victoria Aldecoa Bilbao; Paula Alonso Quintela; Almudena Alonso Ojembarrena;