@misc{indiciae4044a05f7611,
  title = {Quadricuspid aortic valve.},
  author = {D Fischler and M Fitzmaurice and N B Ratliff},
  year = {1990},
  url = {https://pubmed.ncbi.nlm.nih.gov/2331365/},
  note = {Source identifier: 2331365}
}