PT - JOURNAL ARTICLE AU - M. Agnew TI - Ask the Expert: Lung function measurement AID - 10.1183/18106838.0503.224 DP - 2009 Mar 01 TA - Breathe PG - 224--226 VI - 5 IP - 3 4099 - http://breathe.ersjournals.com/content/5/3/224.short 4100 - http://breathe.ersjournals.com/content/5/3/224.full SO - Breathe2009 Mar 01; 5