@misc{indiciaef11804372c08,
  title = {[Left ventricular dynamics in extrasystole].},
  author = {P DELLA PORTA and E MORBELLI and L MASCARETTI and M CASTELFRANCO},
  year = {1961},
  url = {https://pubmed.ncbi.nlm.nih.gov/13721619/},
  note = {Source identifier: 13721619}
}