@misc{indiciaed52fc5e4f047,
  title = {A multiprogrammable pacemaker with unipolar or bipolar option.},
  author = {N P Smyth and D Sager},
  year = {1983},
  doi = {10.1016/0002-8703(83)90216-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/6869227/},
  note = {Source identifier: 6869227}
}