@misc{indiciaeb736e469d6d3,
  title = {Avoiding misclassification bias with the traditional Charnley classification: rationale for a fourth Charnley class BB.},
  author = {C Röder and L P Staub and P Eichler and M Widmer and D Dietrich and S Eggli and U Müller},
  year = {2006},
  doi = {10.1002/jor.20224},
  url = {https://pubmed.ncbi.nlm.nih.gov/16892448/},
  note = {Source identifier: 16892448}
}