@misc{indiciaed05078098220,
  title = {Cusp separation in aortic stenosis.},
  author = {K E Hammermeister},
  year = {1978},
  doi = {10.1016/0002-9149(78)90037-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/626144/},
  note = {Source identifier: 626144}
}