@misc{indiciae03455491bc0d,
  title = {The "hidden" pneumothorax.},
  author = {M K Harkness and A Hashim and D Spence},
  year = {2004},
  doi = {10.1136/emj.2003.006080},
  url = {https://pubmed.ncbi.nlm.nih.gov/15107390/},
  note = {Source identifier: 15107390}
}