@misc{indiciae6ea81bbbd43e,
  title = {Face mask scavenging system.},
  author = {S M Shafer},
  year = {1993},
  doi = {10.1016/s0278-2391(10)80122-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/8336235/},
  note = {Source identifier: 8336235}
}