@misc{indiciaeb19fea5a21f4,
  title = {Open access echocardiography - guide or expense factor?},
  author = {Klaus Tiemann},
  year = {2006},
  doi = {10.1007/s10554-005-1807-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/16374529/},
  note = {Source identifier: 16374529}
}