PT - JOURNAL ARTICLE ED - , TI - Testing your lungs: spirometry AID - 10.1183/20734735.ELF143 DP - 2018 Sep 01 TA - Breathe PG - 257--260 VI - 14 IP - 3 4099 - http://breathe.ersjournals.com/content/14/3/257.short 4100 - http://breathe.ersjournals.com/content/14/3/257.full SO - Breathe2018 Sep 01; 14