@misc{indiciaebdc551e2b0c8,
  title = {Chronic bronchitis.},
  author = {H O Puelma},
  year = {1967},
  doi = {10.1378/chest.52.6.835},
  url = {https://pubmed.ncbi.nlm.nih.gov/6064989/},
  note = {Source identifier: 6064989}
}