RT Journal Article SR Electronic T1 COPD in the chromosomes JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP thoraxjnl-2022-218782 DO 10.1136/thoraxjnl-2022-218782 A1 Beatrice Cockbain A1 Deborah Morris-Rosendahl A1 Adele Corrigan A1 Matthew David Hind YR 2022 UL http://thorax.bmj.com/content/early/2022/05/12/thoraxjnl-2022-218782.abstract AB