RT Journal Article SR Electronic T1 Inhaled corticosteroids were safely stepped down in chronic, stable asthma JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 16 OP 16 DO 10.1136/ebm.9.1.16 VO 9 IS 1 YR 2004 UL http://ebm.bmj.com/content/9/1/16.abstract AB