Araújo, DPadrão, EMorais-Almeida, MCardoso, JPavão, FLeite, R BCaldas, A CMarques, A2017-01-202017-01-202017-01-06Rev Port Pneumol. 2017 Jan 6. pii: S2173-5115(16)30138-5.http://hdl.handle.net/10400.26/17642Phenotypic overlap between the two main chronic airway pulmonary diseases, asthma and chronic obstructive pulmonary disease (COPD), has been the subject of debate for decades, and recently the nomenclature of asthma-COPD overlap syndrome (ACOS) was adopted for this condition. The definition of this entity in the literature is, however, very heterogeneous, it is therefore important to define how it applies to Portugal.engAsmaDoença Pulmonar Obstructiva CrónicaAsthmaPulmonary Disease, Chronic Obstructivejournal article10.1016/j.rppnen.2016.11.005