Chronic obstructive pulmonary disease Chronic Obstructive Pulmlonary Disease Chronic obstructive pulmonary disease COPD Atlas of chronic obstructive pulmonary disease Chronic obstructive pulmonary disease for dummies. Chronic obstructive pulmonary disease questions and answers Community management of chronic obstructive pulmonary disease Standardized dataset for chronic obstructive pulmonary disease Synopsis of clinical pulmonary disease Comprehensive management of chronic obstructive pulmonary disease