@misc{indiciaec25d24fada3f,
  title = {[Echocardiographic study of left ventricular function].},
  author = {E Orlando and G D'antuono and D Cascella and S Petralia and G C Degli Esposti},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4766975/},
  note = {Source identifier: 4766975}
}