@misc{indiciae1808bf36bfd9,
  title = {Open access echocardiography.},
  author = {E Calvo Corbella and J J Rodriguez Alonso and C Quintana Luzón and M Gonzalez},
  year = {1995},
  doi = {10.1136/bmj.311.7002.453b},
  url = {https://pubmed.ncbi.nlm.nih.gov/7640609/},
  note = {Source identifier: 7640609}
}