RT Journal Article SR Electronic T1 Maintaining light sedation is important: next steps for research JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP thoraxjnl-2021-217337 DO 10.1136/thoraxjnl-2021-217337 A1 John W Devlin A1 Bhavna Seth A1 Sarah Train A1 Dale M Needham YR 2021 UL http://thorax.bmj.com/content/early/2021/07/15/thoraxjnl-2021-217337.abstract AB