TY  - RPRT
TI  - Greenwich asthma study.
AU  - H Parnell
AU  - N T Cooke
PY  - 1999
DO  - 10.1136/bmj.319.7211.709
UR  - https://pubmed.ncbi.nlm.nih.gov/10480842/
ID  - 10480842
ER  -