@misc{indiciaef505d53e5812,
  title = {Heart rate variability analysis.},
  author = {L Hejjel and I Gál},
  year = {2001},
  doi = {10.1556/aphysiol.88.2001.3-4.4},
  url = {https://pubmed.ncbi.nlm.nih.gov/12162580/},
  note = {Source identifier: 12162580}
}