@misc{indiciaedaa17820f6c9,
  title = {[Pneumoperitoneum and pneumoretroperitoneum without perforation].},
  author = {J Kirchner and M Lorenz and R Heyd and P Gute and V Jacobi},
  year = {1996},
  url = {https://pubmed.ncbi.nlm.nih.gov/9019935/},
  note = {Source identifier: 9019935}
}