@misc{indiciae6f25b17f3f49,
  title = {Chronic obstructive lung disease.},
  author = {N G Sanerkin and K N Palmer},
  year = {1971},
  doi = {10.1016/s0140-6736(71)92333-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/4105625/},
  note = {Source identifier: 4105625}
}