@misc{indiciae8bb87fdb6424,
  title = {Effects of sputum on pulmonary function.},
  author = {G M Cochrane and B A Webber and S W Clarke},
  year = {1977},
  doi = {10.1136/bmj.2.6096.1181},
  url = {https://pubmed.ncbi.nlm.nih.gov/589074/},
  note = {Source identifier: 589074}
}