@misc{indiciaee5338bc05993,
  title = {Cardiac catheterization.},
  author = {L B ELLIS and R A BLOOMFIELD},
  year = {1950},
  doi = {10.1056/nejm195008312430904},
  url = {https://pubmed.ncbi.nlm.nih.gov/15439541/},
  note = {Source identifier: 15439541}
}