@misc{indiciae843436f18cd4,
  title = {Computing partial-shift respirator use periods.},
  author = {H P Shotwell and J C Caporossi},
  year = {1983},
  doi = {10.1080/15298668391404545},
  url = {https://pubmed.ncbi.nlm.nih.gov/6837442/},
  note = {Source identifier: 6837442}
}