@misc{indiciae69e3b8e6245d,
  title = {Filter vent blocking.},
  author = {L S Lewis},
  year = {2002},
  doi = {10.1136/tc.11.3.285-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/12198290/},
  note = {Source identifier: 12198290}
}