PT - JOURNAL ARTICLE ED - , TI - Correction: Ambient air pollution, lung function and COPD: cross-sectional analysis from the WHO Study of AGEing and adult health wave 1 AID - 10.1136/bmjresp-2020-000684corr1 DP - 2021 Mar 01 TA - BMJ Open Respiratory Research PG - e000684corr1 VI - 8 IP - 1 4099 - http://bmjopenrespres.bmj.com/content/8/1/e000684corr1.short 4100 - http://bmjopenrespres.bmj.com/content/8/1/e000684corr1.full SO - BMJ Open Resp Res2021 Mar 01; 8