@misc{indiciae5ff076a3dc84,
  title = {Preoperative classes for cardiac patients.},
  author = {V Meserko},
  year = {1973},
  doi = {10.1097/00000446-197304000-00033},
  url = {https://pubmed.ncbi.nlm.nih.gov/4487464/},
  note = {Source identifier: 4487464}
}