@misc{indiciae2ad540239c19,
  title = {When we sneeze, does the immune system catch a cold?},
  author = {P J Openshaw},
  year = {1991},
  doi = {10.1136/bmj.303.6808.935},
  url = {https://pubmed.ncbi.nlm.nih.gov/1954412/},
  note = {Source identifier: 1954412}
}