@misc{indiciae165bc5fd31c5,
  title = {Smoking and cough frequency.},
  author = {R G Loudon},
  year = {1976},
  doi = {10.1164/arrd.1976.114.5.1033},
  url = {https://pubmed.ncbi.nlm.nih.gov/984572/},
  note = {Source identifier: 984572}
}