@misc{indiciae77b93a329653,
  title = {An unusual gallstone.},
  author = {G de Celis and D Gómez and C Llebaria and X Latorre},
  year = {1996},
  doi = {10.1016/s0140-6736(96)91307-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/8596330/},
  note = {Source identifier: 8596330}
}