@misc{indiciae226e0cda8899,
  title = {Chest physiotherapy. Evaluating the effectiveness.},
  author = {C Fedorovich and M T Littleton},
  doi = {10.1097/00003465-199003000-00002},
  url = {https://pubmed.ncbi.nlm.nih.gov/2328644/},
  note = {Source identifier: 2328644}
}