RT Journal Article SR Electronic T1 Symbols, abbreviations and units JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 85 OP 100 DO 10.1183/09041950.085s1693 VO 6 IS Suppl 16 A1 Ph.H. Quanjer A1 G.J. Tammeling A1 J.E. Cotes A1 L.M. Fabbri A1 H. Matthys A1 O.F. Pedersen A1 R. Peslin A1 J. Roca A1 P.J. Sterk A1 W.T. Ulmer A1 J.-C. Yernault YR 1993 UL http://erj.ersjournals.com/content/6/Suppl_16/85.abstract AB