@misc{indiciae863044906703,
  title = {Left ventricular function during exercise in patients with aortic valve disease.},
  author = {J Jehle and A Lauber and P Spiller and D Uhlmann},
  year = {1986},
  url = {https://pubmed.ncbi.nlm.nih.gov/3727701/},
  note = {Source identifier: 3727701}
}