@misc{indiciae3038ee9d1594,
  title = {[Respiratory therapy using "resistive breathing"].},
  author = {S Hartl and H Koller and W Heindl},
  year = {1988},
  url = {https://pubmed.ncbi.nlm.nih.gov/3186676/},
  note = {Source identifier: 3186676}
}