@misc{indiciaea421a2ebcdd1,
  title = {[Acute cholecystitis--immediate operation?--pro].},
  author = {R Bittner and M Ulrich},
  year = {2004},
  doi = {10.1055/s-2004-823168},
  url = {https://pubmed.ncbi.nlm.nih.gov/15083402/},
  note = {Source identifier: 15083402}
}