@misc{indiciae6a19d3389923,
  title = {An apparently immobile mitral valve prosthesis leaflet.},
  author = {Lukas E Spieker and Rolf Jenni},
  year = {2004},
  doi = {10.1016/j.echo.2004.04.002},
  url = {https://pubmed.ncbi.nlm.nih.gov/15282497/},
  note = {Source identifier: 15282497}
}