TY  - RPRT
TI  - Cromolyn prophylaxis for chronic asthma.
AU  - J S Hyde
PY  - 1973
DO  - 10.7326/0003-4819-78-6-966
UR  - https://pubmed.ncbi.nlm.nih.gov/4197374/
ID  - 4197374
ER  -