@misc{indiciae3a605a1cb7b0,
  title = {Exercise testing in heart failure: maximal, submaximal, or both?},
  author = {Vera Bittner},
  year = {2003},
  doi = {10.1016/s0735-1097(03)00501-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/12849671/},
  note = {Source identifier: 12849671}
}