@misc{indiciae4ab3b94d5c80,
  title = {Beta-blocking agents.},
  author = {L H Opie},
  year = {1980},
  doi = {10.1016/s0140-6736(80)90479-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/6105549/},
  note = {Source identifier: 6105549}
}