@misc{indiciae52186ea24031,
  title = {Pneumoperitoneum without peritonitis.},
  author = {S Yates and S K Morcos},
  year = {1992},
  doi = {10.1136/pgmj.68.799.387-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/1630991/},
  note = {Source identifier: 1630991}
}