@misc{indiciae19aaab89b5c5,
  title = {An epicardial synchronous pacemaker lead.},
  author = {N P Smyth and E F Hirsch and I N Brecher and R J Betancourt and J W Keller},
  year = {1967},
  doi = {10.1016/s0003-4975(10)66700-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/4951722/},
  note = {Source identifier: 4951722}
}