@misc{indiciae74302a459880,
  title = {Exercise and the heart : round two.},
  author = {R J Jarrett},
  year = {1981},
  doi = {10.1016/s0140-6736(81)91832-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/6110079/},
  note = {Source identifier: 6110079}
}