@misc{indiciaeb05707bfe009,
  title = {Phlegm and filters.},
  author = {J Rimington},
  year = {1972},
  doi = {10.1136/bmj.2.5808.262},
  url = {https://pubmed.ncbi.nlm.nih.gov/5022013/},
  note = {Source identifier: 5022013}
}