@misc{indiciae3685b34b437c,
  title = {Change in double product during stepwise incremental exercise.},
  author = {Kyu Tae Kim and Seung Wook Choi and Kazufumi Takahashi and Takashi Kurokawa and Masahiro Yamasaki},
  year = {2003},
  doi = {10.2114/jpa.22.143},
  url = {https://pubmed.ncbi.nlm.nih.gov/12808227/},
  note = {Source identifier: 12808227}
}