@misc{indiciaee5a7878c75b1,
  title = {[Phonocardiogram in extrasystole].},
  author = {T DI PERRI and G BERTELLI and G FABRIZI},
  year = {1958},
  url = {https://pubmed.ncbi.nlm.nih.gov/13562248/},
  note = {Source identifier: 13562248}
}