@misc{indiciaee6af09bce4e4,
  title = {Monitoring cardiac function.},
  author = {R M Donaldson},
  year = {1987},
  doi = {10.1007/bf02919571},
  url = {https://pubmed.ncbi.nlm.nih.gov/3553390/},
  note = {Source identifier: 3553390}
}