PT - JOURNAL ARTICLE AU - R.O. Crapo TI - The role of reference values in interpreting lung function tests AID - 10.1183/09031936.04.00063804 DP - 2004 Sep 01 TA - European Respiratory Journal PG - 341--342 VI - 24 IP - 3 4099 - http://erj.ersjournals.com/content/24/3/341.short 4100 - http://erj.ersjournals.com/content/24/3/341.full SO - Eur Respir J2004 Sep 01; 24