@misc{indiciaea41ce068a980,
  title = {Comment on improved maneuver for left heart catheterization.},
  author = {V Maranhao},
  year = {1972},
  doi = {10.1016/0002-8703(72)90320-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/5080277/},
  note = {Source identifier: 5080277}
}