@misc{indiciae8072be98e820,
  title = {Heart rate variability in brain death.},
  author = {J Freitas and J Puig and A P Rocha and P Lago and J Teixeira and M J Carvalho and O Costa and A F de Freitas},
  year = {1996},
  doi = {10.1007/bf02281900},
  url = {https://pubmed.ncbi.nlm.nih.gov/8832122/},
  note = {Source identifier: 8832122}
}