@misc{indiciae11cfef1d0127,
  title = {The narrow aortic annulus. A technique for inserting a larger prosthesis.},
  author = {R H Kinsley},
  year = {1977},
  doi = {10.1016/s0002-8703(77)80072-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/860678/},
  note = {Source identifier: 860678}
}