@misc{indiciaed3e8f3353f21,
  title = {Rate responsive pacing and exercise capacity--a comment.},
  author = {R Nordlander and A Hedman and S K Pehrsson},
  year = {1989},
  doi = {10.1111/j.1540-8159.1989.tb01895.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2471159/},
  note = {Source identifier: 2471159}
}