@misc{indiciae429ad5b6a8b3,
  title = {Ultrasound contrast agents: basic principles.},
  author = {F Calliada and R Campani and O Bottinelli and A Bozzini and M G Sommaruga},
  year = {1998},
  doi = {10.1016/s0720-048x(98)00057-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/9652516/},
  note = {Source identifier: 9652516}
}