@misc{indiciae13cb763e9946,
  title = {Spontaneous pneumothorax.},
  author = {H M Pouwels and E F Wouters},
  year = {1990},
  doi = {10.1016/0140-6736(90)90392-i},
  url = {https://pubmed.ncbi.nlm.nih.gov/1968600/},
  note = {Source identifier: 1968600}
}