@misc{indiciaeb5c628a63172,
  title = {A method for the classification of errors in dental esthetics.},
  author = {R E Lombardi},
  year = {1974},
  doi = {10.1016/0022-3913(74)90004-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4613821/},
  note = {Source identifier: 4613821}
}