TY  - RPRT
TI  - What is a beta-blocker?
AU  - R H Thompson
AU  - E Letley
PY  - 1967
DO  - 10.1016/s0140-6736(67)90656-3
UR  - https://pubmed.ncbi.nlm.nih.gov/4168579/
ID  - 4168579
ER  -