@misc{indiciae9d1083f41431,
  title = {Exercise and VPCs.},
  author = {G Gey and R A Bruce},
  year = {1977},
  doi = {10.1161/01.cir.56.6.1113},
  url = {https://pubmed.ncbi.nlm.nih.gov/923056/},
  note = {Source identifier: 923056}
}