RT Journal Article SR Electronic T1 Reproducibility and reliability of pleural fluid cytokine measurements JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 1001 OP 1003 DO 10.1183/09031936.00088409 VO 34 IS 4 A1 Bielsa, S. A1 Davies, H. E. A1 Davies, R. J. O. A1 Taylor, A. A1 Lee, Y. C. G. YR 2009 UL http://erj.ersjournals.com/content/34/4/1001.abstract AB