Trends in the prevalence of COPD in elderly individuals in an air-polluted city in Japan: a cross-sectional study

Kotaki K, Ikeda H, Fukuda T, Yuhei K, Yuki F, Kawasaki M, Wakamatsu K, Sugahara K

International Journal of Chronic Obstructive Pulmonary Disease 2019, 14:791-798

Published Date: 3 April 2019