Causes, Characteristics and Mechanisms of Infective Exacerbations in Subjects With Asthma and Chronic Obstructive Pulmonary Disease (COPD) [clinicaltrials:NCT00512954]

Causes, Characteristics and Mechanisms of Infective Exacerbations in Subjects With Asthma and Chronic Obstructive Pulmonary Disease (COPD) [clinicaltrials:NCT00512954]