@misc{indiciae72ab2e9897cd, title = {Beta blockade and coronary circulation.}, author = {M H Frick and K S Virtanen}, year = {1976}, doi = {10.1016/s0002-8703(76)80339-0}, url = {https://pubmed.ncbi.nlm.nih.gov/1258762/}, note = {Source identifier: 1258762} }