@misc{indiciae2531ba79fadb,
  title = {Pneumoperitoneum and appendicitis.},
  author = {J Farman and E G Kassner and S Dallemand and H D Stein},
  year = {1976},
  doi = {10.1007/bf02256380},
  url = {https://pubmed.ncbi.nlm.nih.gov/1052473/},
  note = {Source identifier: 1052473}
}