@misc{indiciae9783b40effe2,
  title = {Respiratory protective equipment.},
  author = {R M Howie},
  year = {2005},
  doi = {10.1136/oem.2002.004424},
  url = {https://pubmed.ncbi.nlm.nih.gov/15901892/},
  note = {Source identifier: 15901892}
}