@incollection{Morera12, author = {Maria Luisa Martinez Ortiz and Josep Morera}, title = {COPD: Differential Diagnosis}, booktitle = {Chronic Obstructive Pulmonary Disease}, publisher = {IntechOpen}, address = {Rijeka}, year = {2012}, editor = {Kian-Chung Ong}, chapter = {6}, doi = {10.5772/30581}, url = {https://doi.org/10.5772/30581} }