@misc{indiciaee69953e848d7,
  title = {Colonic gallstone ileus.},
  author = {Duncan J Stewart and Dileep N Lobo and John H Scholefield},
  year = {2003},
  doi = {10.1016/s1072-7515(02)01601-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/12517568/},
  note = {Source identifier: 12517568}
}