@misc{indiciaef7e10f7f96e9,
  title = {Spontaneous pneumothorax.},
  author = {T A Clark and D E Hutchison and R M Deaner and V H Fitchett},
  year = {1972},
  doi = {10.1016/0002-9610(72)90127-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/4635216/},
  note = {Source identifier: 4635216}
}