@misc{indiciae972a4920dff2,
  title = {Left ventricular function during exercise before and after bypass surgery.},
  author = {H O Hirzel and R Wegmueller and J Grimm and H P Krayenbuehl and A Senning},
  year = {1981},
  doi = {10.1159/000173324},
  url = {https://pubmed.ncbi.nlm.nih.gov/6976207/},
  note = {Source identifier: 6976207}
}