RT Journal Article SR Electronic T1 Predicting the outcome from NIV for acute exacerbations of COPD JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 815 OP 816 DO 10.1136/thorax.55.10.815 VO 55 IS 10 A1 J V J LIGHTOWLER A1 M W ELLIOTT YR 2000 UL http://thorax.bmj.com/content/55/10/815.abstract AB