@misc{indiciae7c703ed21a37,
  title = {Chest physiotherapy by the 'bag squeezing' method: a guide to technique.},
  author = {A J Clement and S K Hübsch},
  year = {1968},
  url = {https://pubmed.ncbi.nlm.nih.gov/5708074/},
  note = {Source identifier: 5708074}
}