@misc{indiciae4494bbe939f7,
  title = {Aortic valvuloplasty under direct vision.},
  author = {J G SCANNELL and R S SHAW and J F BURKE and W G AUSTEN and A H VILLEGAS and R R KELLEY},
  year = {1960},
  doi = {10.1056/nejm196003102621003},
  url = {https://pubmed.ncbi.nlm.nih.gov/14442210/},
  note = {Source identifier: 14442210}
}