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2 Unit of Respiratory Diseases, General Hospital of Sestri Levante, Sestri Levante, Genoa, Italy - antonellonicolini@gmail.com.
3 Unit of Pneumology U, Cardiovascular and Thoracic Department, Molinette Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy.
2 Unit of Respiratory Diseases, General Hospital of Sestri Levante, Sestri Levante, Genoa, Italy - antonellonicolini@gmail.com.
3 Unit of Pneumology U, Cardiovascular and Thoracic Department, Molinette Hospital, Città della Salute e della Scienza, University of Turin, Turin, Italy.