RT Journal Article SR Electronic T1 Cathepsin H and napsin A are active in the alveoli and increased in alveolar proteinosis JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society DO 10.1183/09031936.00081207 A1 M. Woischnik A1 A. Bauer A1 R. Aboutaam A1 A. Pamir A1 F. Stanzel A1 J. de Blic A1 M. Griese YR 2008 UL http://erj.ersjournals.com/content/early/2008/01/23/09031936.00081207.abstract AB