RT Journal Article SR Electronic T1 Validation of assays for inflammatory mediators in sputum JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1208 OP 1209 DO 10.1034/j.1399-3003.2000.16f31.x VO 16 IS 6 A1 Kelly, M A1 Leigh, R A1 Hargreave, FE YR 2000 UL http://erj.ersjournals.com/content/16/6/1208.abstract AB