@misc{indiciae4de2d09598a0,
  title = {Spontaneous pneumothorax.},
  author = {R H Hagen and W Reed and K Solheim},
  year = {1987},
  doi = {10.3109/14017438709106521},
  url = {https://pubmed.ncbi.nlm.nih.gov/3616544/},
  note = {Source identifier: 3616544}
}