TY  - RPRT
TI  - Asthma severity: a factor analytic investigation.
AU  - W C Bailey
AU  - D M Higgins
AU  - B M Richards
AU  - J M Richards
PY  - 1992
DO  - 10.1016/0002-9343(92)90231-y
UR  - https://pubmed.ncbi.nlm.nih.gov/1524077/
ID  - 1524077
ER  -