Serras, I.Oliveira, J. A.Pereira, L.Barreto, C.2020-10-272020-10-272019-01Pulmonology Volume 25, Issue 1, January–February 2019, Pages 60-612531-0437http://hdl.handle.net/10451/44667Copyright © 2019 Sociedade Portuguesa de Pneumologia. Published by Elsevier España, S.L.U. This is an open access article under the CCBY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)engjournal article10.1016/j.pulmoe.2019.02.001