@misc{indiciae4069bf0dbb56,
  title = {Impaired left ventricular function in chronic aortic valve disease: survival and function after replacement by Björk-Shiley prosthesis.},
  author = {F Schwarz and W Flameng and F Langebartels and M Sesto and P Walter and M Schlepper},
  year = {1979},
  doi = {10.1161/01.cir.60.1.48},
  url = {https://pubmed.ncbi.nlm.nih.gov/445734/},
  note = {Source identifier: 445734}
}