@misc{indiciae2888409749c9,
  title = {Sigmoid volvulus with and without megacolon.},
  author = {P Ryan},
  year = {1982},
  doi = {10.1007/bf02629539},
  url = {https://pubmed.ncbi.nlm.nih.gov/7128369/},
  note = {Source identifier: 7128369}
}