TY  - RPRT
TI  - "Step-down" therapy for asthma: why, when, and how?
AU  - Leonard B Bacharier
PY  - 2002
DO  - 10.1067/mai.2002.124665
UR  - https://pubmed.ncbi.nlm.nih.gov/12063517/
ID  - 12063517
ER  -