RT Journal Article SR Electronic T1 Modernising case finding for α1-antitrypsin deficiency by DNA sequencing of COPD patients JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2002628 DO 10.1183/13993003.02628-2020 VO 56 IS 4 A1 Mark Quinn A1 Alice M. Turner YR 2020 UL http://erj.ersjournals.com/content/56/4/2002628.abstract AB