@misc{indiciae72cbb9b89607,
  title = {A threshold loading device for testing of inspiratory muscle performance.},
  author = {P R Eastwood and D R Hillman},
  year = {1995},
  doi = {10.1183/09031936.95.08030463},
  url = {https://pubmed.ncbi.nlm.nih.gov/7789495/},
  note = {Source identifier: 7789495}
}