@misc{indiciae92c89d73039c,
  title = {Letter: asthma mortality associated with pneumothorax and intermittent positive-pressure breathing.},
  author = {I Grant},
  year = {1975},
  doi = {10.1016/s0140-6736(75)92528-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/49496/},
  note = {Source identifier: 49496}
}