@misc{indiciaef3f22e57d885,
  title = {The electrocardiographic exercise test.},
  author = {D SCHERF and A I SCHAFFER},
  year = {1952},
  doi = {10.1016/0002-8703(52)90250-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/14933301/},
  note = {Source identifier: 14933301}
}