PT - JOURNAL ARTICLE ED - , TI - Review: symptom-based action plans reduce acute care visits more than peak flow-based plans in children with asthma AID - 10.1136/ebm.13.4.122 DP - 2008 Aug 01 TA - Evidence Based Medicine PG - 122--122 VI - 13 IP - 4 4099 - http://ebm.bmj.com/content/13/4/122.short 4100 - http://ebm.bmj.com/content/13/4/122.full SO - Evid Based Med2008 Aug 01; 13