@misc{indiciae0cbbaea6f9da,
  title = {Why intermittent positive pressure when normal inhalations will do?},
  author = {V Chernick and M E Avery and D J Strieder},
  year = {1977},
  doi = {10.1016/s0022-3476(77)80876-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/327053/},
  note = {Source identifier: 327053}
}