@misc{indiciaecb53558e5f0c,
  title = {A convenient method for measuring ventilation; based upon the Venturi principle.},
  author = {F C WARRING and J K SIEMSEN},
  year = {1957},
  doi = {10.1164/artpd.1957.75.2.303},
  url = {https://pubmed.ncbi.nlm.nih.gov/13403159/},
  note = {Source identifier: 13403159}
}