@misc{indiciae16e1bfb6c8b4,
  title = {Warning system for piston-type respirator.},
  author = {R N Wilger and R A Myers and J P Duffy and A L Dunn},
  url = {https://pubmed.ncbi.nlm.nih.gov/5222250/},
  note = {Source identifier: 5222250}
}