@misc{indiciaea8eea4227d4d,
  title = {What are normal esthetic values?},
  author = {M A Pogrel},
  year = {1991},
  doi = {10.1016/0278-2391(91)90060-y},
  url = {https://pubmed.ncbi.nlm.nih.gov/1886024/},
  note = {Source identifier: 1886024}
}