@misc{indiciae8b56b0a33fab,
  title = {A four-minute submaximal constant work rate exercise test to assess cardiovascular functional class in chronic heart failure.},
  author = {R Belardinelli and Y Y Zhang and K Wasserman and A Purcaro and P G Agostoni},
  year = {1998},
  doi = {10.1016/s0002-9149(98)00093-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/9604949/},
  note = {Source identifier: 9604949}
}