RT Journal Article SR Electronic T1 Survival of patients with severe α1-antitrypsin deficiency JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 1184 OP 1184 DO 10.1136/thx.49.11.1184-b VO 49 IS 11 YR 1994 UL http://thorax.bmj.com/content/49/11/1184.3.abstract AB