@misc{indiciaea7422be62ee6,
  title = {Exercise testing in men with significant left main coronary disease.},
  author = {J V Nixon and K Lipscomb and C G Blomqvist and W Shapiro},
  year = {1979},
  doi = {10.1136/hrt.42.4.410},
  url = {https://pubmed.ncbi.nlm.nih.gov/508471/},
  note = {Source identifier: 508471}
}