@misc{indiciaeffcb043512ec,
  title = {Double-rooted maxillary central incisor.},
  author = {C L Mader and J L Konzelman},
  year = {1980},
  doi = {10.1016/0030-4220(80)90340-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/6930608/},
  note = {Source identifier: 6930608}
}