@misc{indiciaee16717e997c6,
  title = {Treadmill exercise test performance index.},
  author = {A J Miller and I M Grais},
  year = {1986},
  doi = {10.1378/chest.89.4.617a},
  url = {https://pubmed.ncbi.nlm.nih.gov/3956292/},
  note = {Source identifier: 3956292}
}