@misc{indiciae3c05708827d5,
  title = {Submaximal exercise testing after unstable angina.},
  author = {J V Nixon and M C Hillert and W Shapiro and T C Smitherman},
  year = {1980},
  doi = {10.1016/0002-8703(80)90628-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/7377099/},
  note = {Source identifier: 7377099}
}