Association of lung function genes with chronic obstructive pulmonary disease.

Study Design and Outcomes of Korean Obstructive Lung Disease (KOLD) Cohort Study.

Health care use and economic burden of patients with diagnosed chronic obstructive pulmonary disease in Korea.

Influence of environmental exposures on patients with chronic obstructive pulmonary disease in Korea.

Polymorphisms in PDE4D are associated with a risk of COPD in non-emphysematous Koreans.

Relationship of vitamin D binding protein polymorphisms and lung function in Korean chronic obstructive pulmonary disease.

Detailed analysis of the density change on chest CT of COPD using non-rigid registration of inspiration/expiration CT scans.

Efficacy of bronchoscopic lung volume reduction by endobronchial valves in patients with heterogeneous emphysema: report on the first Asian cases.

Emphysematous phenotype is an independent predictor for frequent exacerbation of COPD.

Three-month treatment response and exacerbation in chronic obstructive pulmonary disease.