@misc{indiciaeb4704de37997,
  title = {[Gallbladder calculi--always an indication for surgery?].},
  author = {R Bittner and M Ulrich},
  year = {2004},
  doi = {10.1007/s00108-003-1105-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/14735239/},
  note = {Source identifier: 14735239}
}