RT Journal Article SR Electronic T1 Prognosis of patients with COPD admitted to the ICU JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 916 OP 916 DO 10.1136/thx.2009.116509 VO 64 IS 10 A1 J M Añón A1 A García de Lorenzo YR 2009 UL http://thorax.bmj.com/content/64/10/916.1.abstract AB