@misc{indiciaec4da9d771409,
  title = {The artificial cardiac pacemaker.},
  author = {H J Thalen},
  year = {1971},
  doi = {10.1016/0002-8703(71)90001-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/5552063/},
  note = {Source identifier: 5552063}
}