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Soler-Cataluña JJ, Calle M, Cosío BG, Marín JM, Monsó E, Alfageme I; Comité de Calidad Asistencial de la SEPAR; Area de Trabajo EPOC de la SEPAR.Soler-Cataluña JJ, et al.Arch Bronconeumol. 2009 Apr;45(4):196-203. doi: 10.1016/j.arbres.2008.05.008. Epub 2009 Mar 21.Arch Bronconeumol. 2009.PMID: 19304362Spanish.