RT Journal Article SR Electronic T1 Sputum induction JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 3s OP 8s DO 10.1183/09031936.02.00000302 VO 20 IS 37 suppl A1 Leader of the Working Group: P.L. Paggiaro A1 Members of the Working Group: A1 P. Chanez A1 O. Holz A1 P.W. Ind A1 R. Djukanović A1 P. Maestrelli A1 P.J. Sterk YR 2002 UL http://erj.ersjournals.com/content/20/37_suppl/3s.abstract AB