@misc{indiciaeb4567766a104,
  title = {Key references. Beta blockers.},
  author = {A S Nies},
  year = {1982},
  doi = {10.1161/01.cir.66.6.1342},
  url = {https://pubmed.ncbi.nlm.nih.gov/6128087/},
  note = {Source identifier: 6128087}
}