@misc{indiciaee763e0f2d1b3,
  title = {The relation between ballistocardiogram force envelopes and pulse pressure.},
  author = {M Steffin and J Nyboer},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5771547/},
  note = {Source identifier: 5771547}
}