TY  - RPRT
TI  - A classification system for asthmatic patients: clinical-physiological correlation.
AU  - P B Boggs
AU  - A L Stephens
AU  - K D Bhat
AU  - W A Vekovius
PY  - 1981
UR  - https://pubmed.ncbi.nlm.nih.gov/7316246/
ID  - 7316246
ER  -