PT - JOURNAL ARTICLE AU - Quanjer, Philip H. TI - Introduction AID - 10.1183/09041950.004s1693 DP - 1993 Mar 01 TA - European Respiratory Journal PG - 4--4 VI - 6 IP - Suppl 16 4099 - http://erj.ersjournals.com/content/6/Suppl_16/4.short 4100 - http://erj.ersjournals.com/content/6/Suppl_16/4.full SO - Eur Respir J1993 Mar 01; 6