@misc{indiciaefc31d76620a1,
  title = {IPPB therapy - where do we go from here?},
  author = {T H Noehren},
  year = {1975},
  doi = {10.1378/chest.67.4.471},
  url = {https://pubmed.ncbi.nlm.nih.gov/1091420/},
  note = {Source identifier: 1091420}
}