RT Journal Article SR Electronic T1 No place like home: initiation of non-invasive ventilation for stable severe COPD JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 196 OP 197 DO 10.1136/thoraxjnl-2019-213787 VO 75 IS 3 A1 Nicholas S Hill YR 2020 UL http://thorax.bmj.com/content/75/3/196.abstract AB