Original Research

Comorbidities in obstructive lung disease in Korea: data from the fourth and fifth Korean National Health and Nutrition Examination Survey

Park HJ, Leem AY, Lee SH, Song JH, Park MS, Kim YS, Kim SK, Chang J, Chung KS

International Journal of Chronic Obstructive Pulmonary Disease 2015, 10:1571-1582

Published Date: 7 August 2015