@misc{indiciae859597ac3343,
  title = {[Natural harmonic echocardiography].},
  author = {P Voci and G Plaustro and G Testa and P P Campa},
  year = {1998},
  url = {https://pubmed.ncbi.nlm.nih.gov/9859609/},
  note = {Source identifier: 9859609}
}