@misc{indiciae0b4cb635dce0,
  title = {Benign persistent pneumoperitoneum in scleroderma.},
  author = {M Ritchie and J Caravelli and M Shike},
  year = {1986},
  doi = {10.1007/bf01320325},
  url = {https://pubmed.ncbi.nlm.nih.gov/3698773/},
  note = {Source identifier: 3698773}
}