@misc{indiciaec66780590251,
  title = {[Pneumoperitoneum without obvious perforation--a case history].},
  author = {T Höfs and K Grüngreiff and F D Kleine and S Kleine},
  year = {1978},
  url = {https://pubmed.ncbi.nlm.nih.gov/735186/},
  note = {Source identifier: 735186}
}