@misc{indiciaebedaa641fb12,
  title = {Spontaneous pneumothorax.},
  author = {J P Duffy},
  year = {1991},
  doi = {10.1136/bmj.302.6778.727-d},
  url = {https://pubmed.ncbi.nlm.nih.gov/2021755/},
  note = {Source identifier: 2021755}
}