@misc{indiciae91cabe722066,
  title = {Heart rate variability in left ventricular dysfunction and heart failure: effects and implications of drug treatment.},
  author = {Y S Tuininga and D J van Veldhuisen and J Brouwer and J Haaksma and H J Crijns and A J Man in't Veld and K I Lie},
  year = {1994},
  doi = {10.1136/hrt.72.6.509},
  url = {https://pubmed.ncbi.nlm.nih.gov/7857731/},
  note = {Source identifier: 7857731}
}