@misc{indiciaeacf6a3730dc5,
  title = {Gallstone ileus.},
  author = {S B VanLandingham and C W Broders},
  year = {1982},
  doi = {10.1016/s0039-6109(16)42683-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/7071691/},
  note = {Source identifier: 7071691}
}