@misc{indiciae5f14f55913b5,
  title = {Gallstone ileus--beware the silent second stone.},
  author = {J B Davies and P C Sedman and E A Benson},
  year = {1996},
  doi = {10.1136/pgmj.72.847.300},
  url = {https://pubmed.ncbi.nlm.nih.gov/8761506/},
  note = {Source identifier: 8761506}
}