@misc{indiciae5cd71c0bcd80,
  title = {Standardized informal exercise testing for programming rate adaptive pacemakers.},
  author = {D L Hayes and L Von Feldt and S T Higano},
  year = {1991},
  doi = {10.1111/j.1540-8159.1991.tb02764.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1721173/},
  note = {Source identifier: 1721173}
}