@misc{indiciaea65589222e7e,
  title = {Heart rate variability and brain death.},
  author = {Abhik K Biswas and John F Summerauer},
  year = {2004},
  doi = {10.1097/00008506-200401000-00011},
  url = {https://pubmed.ncbi.nlm.nih.gov/14676571/},
  note = {Source identifier: 14676571}
}