@misc{indiciaef1253b18b61d,
  title = {[External fetal electrocardiotocography].},
  author = {F K Klöck and G Lamberti and H J Schulte and B Liedtke},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/5022640/},
  note = {Source identifier: 5022640}
}