@misc{indiciae5d9b5b8d080a,
  title = {Expiratory bacterial filters.},
  author = {J Lumley and A Holdcroft and H Gaya and H M Darlow and D J Adams},
  year = {1976},
  doi = {10.1016/s0140-6736(76)92971-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/59079/},
  note = {Source identifier: 59079}
}