TY  - RPRT
TI  - Regular inhaled beta agonist in asthma: effects on exacerbations and lung function.
AU  - E E Van Essen-Zandvliet
AU  - K F Kerrebijn
PY  - 1993
DO  - 10.1136/thx.48.8.871
UR  - https://pubmed.ncbi.nlm.nih.gov/8211883/
ID  - 8211883
ER  -