@misc{indiciae51e2a8ae4afb,
  title = {Determining heart-rate variability: comparing methodologies using computer simulations.},
  author = {J D Harry and R Freeman},
  year = {1993},
  doi = {10.1002/mus.880160305},
  url = {https://pubmed.ncbi.nlm.nih.gov/8446124/},
  note = {Source identifier: 8446124}
}