@misc{indiciaedf85ac33e049,
  title = {Postextrasystolic ventricular pressure responses.},
  author = {W Beck and E Chesler and V Schrire},
  year = {1971},
  doi = {10.1161/01.cir.44.4.523},
  url = {https://pubmed.ncbi.nlm.nih.gov/4106154/},
  note = {Source identifier: 4106154}
}