TY  - RPRT
TI  - Asthma and enkephalin.
AU  - R J Butland
AU  - J Pang
AU  - D Geddes
PY  - 1980
DO  - 10.1136/bmj.281.6236.387-b
UR  - https://pubmed.ncbi.nlm.nih.gov/7437133/
ID  - 7437133
ER  -