@misc{indiciae8aa5f0d19183,
  title = {[Postoperative respiratory therapy using incentive spirometry].},
  author = {H Mang and J Weindler and C L Zapf},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2658675/},
  note = {Source identifier: 2658675}
}