TY  - RPRT
TI  - Metered dose inhalers.
AU  - D A Togger
AU  - P S Brenner
PY  - 2001
DO  - 10.1097/00000446-200110000-00020
UR  - https://pubmed.ncbi.nlm.nih.gov/11680341/
ID  - 11680341
ER  -