@misc{indiciae4cc362872e58,
  title = {Hormone replacement therapy and heart-rate variability.},
  author = {C S Hayward and C M Webb and P Collins},
  year = {1999},
  doi = {10.1016/s0140-6736(05)66330-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/10421336/},
  note = {Source identifier: 10421336}
}