@misc{indiciae001647c749ef,
  title = {Occupation and COPD.},
  author = {D C Christiani},
  year = {2005},
  doi = {10.1136/oem.2004.017426},
  url = {https://pubmed.ncbi.nlm.nih.gov/15778252/},
  note = {Source identifier: 15778252}
}