@misc{indiciae5c4644be345e,
  title = {Maximal expiratory flows after postural drainage.},
  author = {J Feldman and G A Traver and L M Taussig},
  year = {1979},
  doi = {10.1164/arrd.1979.119.2.239},
  url = {https://pubmed.ncbi.nlm.nih.gov/434596/},
  note = {Source identifier: 434596}
}