RT Journal Article SR Electronic T1 COPD: α1-antitrypsin deficiency and other manifestations JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP A132 OP A136 VO 64 IS Suppl 4 YR 2009 UL http://thorax.bmj.com/content/64/Suppl_4/A132.abstract AB