@misc{indiciaeecd0100f172e,
  title = {Congenitally missing mandibular permanent central incisors.},
  author = {P C Lehman},
  year = {1976},
  doi = {10.1016/0030-4220(76)90155-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/1061929/},
  note = {Source identifier: 1061929}
}