RT Journal Article SR Electronic T1 Alpha-1-antitrypsin replacement therapy: will its efficacy ever be proved? JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 2191 OP 2193 DO 10.1183/09031936.97.10102191 VO 10 IS 10 A1 DC Hutchison A1 MD Hughes YR 1997 UL http://erj.ersjournals.com/content/10/10/2191.abstract AB