@misc{indiciae97fb5ffa9ccc,
  title = {[ECG in artificial pacemaker. II. ECG in functionally inefficient pacemaker].},
  author = {J Witte and R Seidel and U Stürmer},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5386505/},
  note = {Source identifier: 5386505}
}