@misc{indiciaeccb3a11cc7bb,
  title = {Pediatric exercise testing.},
  author = {A A Klein},
  year = {1987},
  doi = {10.3928/0090-4481-19870701-08},
  url = {https://pubmed.ncbi.nlm.nih.gov/3309843/},
  note = {Source identifier: 3309843}
}