PT - JOURNAL ARTICLE ED - , TI - Budesonide-formoterol for maintenance and as needed reliever treatment reduced asthma exacerbations DP - 2007 Feb 01 TA - Archives of disease in childhood - Education & practice edition PG - ep31--ep31 VI - 92 IP - 1 4099 - http://ep.bmj.com/content/92/1/ep31.short 4100 - http://ep.bmj.com/content/92/1/ep31.full SO - Arch Dis Child Educ Pract Ed2007 Feb 01; 92