1 Pulmonary and Allergy Disease Unit and Cystic Fibrosis Center, Department of Pediatrics, Istituto Giannina Gaslini, Genoa, Italy.
2 Pulmonary and Allergy Disease Unit and Cystic Fibrosis Center, Department of Pediatrics, Istituto Giannina Gaslini, Genoa, Italy. Electronic address: giovannirossi@gaslini.org.