TY  - RPRT
TI  - Polystyrene microsphere spray standards based on CFC-free inhaler technology.
AU  - C Vervaet
AU  - P R Byron
PY  - 2000
DO  - 10.1089/089426800418631
UR  - https://pubmed.ncbi.nlm.nih.gov/11010591/
ID  - 11010591
ER  -