@misc{indiciae8ffebff5523f,
  title = {Heart rate variability.},
  author = {Kenneth C Bilchick and Ronald D Berger},
  year = {2006},
  doi = {10.1111/j.1540-8167.2006.00501.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/16836727/},
  note = {Source identifier: 16836727}
}