RT Journal Article SR Electronic T1 Sputum neutrophil elastase in bronchiectasis: a Southern European cohort study JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2001702 DO 10.1183/13993003.01702-2020 A1 Andrea Gramegna A1 Stefano Aliberti A1 Oriol Sibila A1 Carlotta Di Francesco A1 Giovanni Sotgiu A1 Lidia Perea A1 Leonardo Terranova A1 Martina Oriano A1 Tommaso Pilocane A1 Laura Saderi A1 James D. Chalmers A1 Paola Marchisio A1 Francesco Blasi YR 2020 UL http://erj.ersjournals.com/content/early/2020/06/08/13993003.01702-2020.abstract AB