@misc{indiciaee8ab1df474c7,
  title = {Breathing system filters.},
  author = {J Stevens},
  year = {1999},
  doi = {10.1046/j.1365-2044.1999.0759i.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/10209383/},
  note = {Source identifier: 10209383}
}