Open access

COPD: Differential Diagnosis

Written By

Maria Luisa Martinez Ortiz and Josep Morera

Submitted: March 20th, 2011 Published: March 2nd, 2012

DOI: 10.5772/30581

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Written By

Maria Luisa Martinez Ortiz and Josep Morera

Submitted: March 20th, 2011 Published: March 2nd, 2012