@misc{indiciaef34348213b63,
  title = {Propranolol in angina pectoris.},
  author = {G H Neilson and W A Seldon},
  year = {1969},
  doi = {10.5694/j.1326-5377.1969.tb49736.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4891931/},
  note = {Source identifier: 4891931}
}