@misc{indiciae023a14e67d25,
  title = {Performing CPR on adults.},
  author = {J S Willens and L C Copel},
  year = {1989},
  doi = {10.1097/00152193-198901000-00017},
  url = {https://pubmed.ncbi.nlm.nih.gov/2909927/},
  note = {Source identifier: 2909927}
}