@misc{indiciae1bfecbf305b6,
  title = {[Diagnostic possibilities using contrast echocardiography].},
  author = {G Wagner and J Syska and H Köhler and M Wehner},
  year = {1981},
  url = {https://pubmed.ncbi.nlm.nih.gov/7281823/},
  note = {Source identifier: 7281823}
}