@misc{indiciae71d73bbda9de,
  title = {Exercise update 2001.},
  author = {R A Stein and R Chesler and A M Safi},
  doi = {10.1097/00132580-200109000-00006},
  url = {https://pubmed.ncbi.nlm.nih.gov/11975811/},
  note = {Source identifier: 11975811}
}