Keogan S, Alonso T, Sunday S, Tigova O, et al. Lung function changes in patients with chronic obstructive pulmonary disease (COPD) and asthma exposed to secondhand smoke in outdoor areas. J Asthma 2020 May 22:1-7. doi: 10.1080/02770903.2020.1766062.
PMID: 32441557