@misc{indiciae27b7fc6c1235,
  title = {Concerning HEPA filtering.},
  author = {L L Coriell and G J McGarrity},
  year = {1971},
  doi = {10.2105/ajph.61.9.1749},
  url = {https://pubmed.ncbi.nlm.nih.gov/5571741/},
  note = {Source identifier: 5571741}
}