@misc{indiciae7a99615eed48,
  title = {Teaching bedside incentive spirometry.},
  author = {Richard L Pullen},
  year = {2003},
  doi = {10.1097/00152193-200308000-00018},
  url = {https://pubmed.ncbi.nlm.nih.gov/12918478/},
  note = {Source identifier: 12918478}
}