TY - JOUR T1 - Stepping down asthma treatment JF - Drug and Therapeutics Bulletin JO - Drug Ther Bull DO - 10.1136/dtb.2021.000017 SP - dtb-2021-000017 A2 - , Y1 - 2021/04/13 UR - http://dtb.bmj.com/content/early/2021/04/12/dtb.2021.000017.abstract N2 - ER -