Affiliation: | aPaediatric Pulmonology Unit, University Hospital, Federal University of Minas Gerais, Belo Horizonte, Brazil bService des Maladies Respiratoires, Hôpital Arnaud de Villeneuve, Montpellier, France cDepartment of Statistics, Exact Sciences Institute, Federal University of Minas Gerais, Belo Horizonte, Brazil dChest physiotherapist, Paediatric Pulmonology Unit, University Hospital, Federal University of Minas Gerais, Belo Horizonte, Brazil |