@misc{indiciaec0a81360f6da,
  title = {Gallstone ileus. A continuing surgical problem.},
  author = {A S Hudspeth and W F McGuirt},
  year = {1970},
  doi = {10.1001/archsurg.1970.01340240036007},
  url = {https://pubmed.ncbi.nlm.nih.gov/5444483/},
  note = {Source identifier: 5444483}
}