@misc{indiciae795ba5fda15b,
  title = {Contrast echocardiography.},
  author = {J W Winkelmann and M D Kenner and R Dave and R H Chandwaney and S B Feinstein},
  year = {1994},
  doi = {10.1016/0301-5629(94)90086-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/7998371/},
  note = {Source identifier: 7998371}
}