@misc{indiciae72c40d138af4,
  title = {Systolic time intervals. A non-invasive method to determine left ventricular function.},
  author = {R Shabetai},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4749323/},
  note = {Source identifier: 4749323}
}