TY - JOUR T1 - Is Chronic Obstructive Pulmonary Disease Really a Progressive Disease? JO - Archivos de Bronconeumología T2 - AU - de Torres,Juan P. AU - Celli,Bartolome R. SN - 15792129 M3 - 10.1016/j.arbr.2017.03.004 DO - 10.1016/j.arbr.2017.03.004 UR - https://www.archbronconeumol.org/en-is-chronic-obstructive-pulmonary-disease-articulo-S1579212917300812 ER -