@misc{indiciae2e0432eadc5c,
  title = {[Gallstone ileus. Considerations on 14 clinical cases].},
  author = {A P Guerzoni and R Armaroli and F Martuzzi and G Rossi and M Tomaiuoli and B Tonelli},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3614708/},
  note = {Source identifier: 3614708}
}