@misc{indiciae38435f5aae4d,
  title = {A practical approach to fetal electrocardiography.},
  author = {G Schuler and I H Glass and J C Whyte},
  year = {1967},
  doi = {10.1016/0002-9378(67)90568-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/6066721/},
  note = {Source identifier: 6066721}
}