@misc{indiciae10b73fb3250f,
  title = {Heart block and cyclopropane.},
  author = {K A COWAN},
  year = {1954},
  doi = {10.1111/j.1365-2044.1954.tb01535.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/13148569/},
  note = {Source identifier: 13148569}
}