RT Journal Article SR Electronic T1 Domiciliary non-invasive ventilation in stable COPD? JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 553 OP 556 DO 10.1136/thx.2009.113423 VO 64 IS 7 A1 Elliott, Mark W YR 2009 UL http://thorax.bmj.com/content/64/7/553.abstract AB