@misc{indiciaee3a92cb87f59,
  title = {Contrast echocardiography for left ventricular opacification.},
  author = {J Timperley and A R J Mitchell and H Becher},
  year = {2003},
  doi = {10.1136/heart.89.12.1394},
  url = {https://pubmed.ncbi.nlm.nih.gov/14617543/},
  note = {Source identifier: 14617543}
}