@misc{indiciaeed1c22a6eba7,
  title = {Endoscopist's worry stone.},
  author = {Florian Graepler and Michael Gregor},
  year = {2006},
  doi = {10.1016/j.gie.2006.01.011},
  url = {https://pubmed.ncbi.nlm.nih.gov/16813818/},
  note = {Source identifier: 16813818}
}