@misc{indiciae2c279680c208,
  title = {Pitfall in the PCO2 gradient.},
  author = {A R Hill and P Homel},
  year = {1996},
  doi = {10.1378/chest.110.3.865-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/8797451/},
  note = {Source identifier: 8797451}
}