@misc{indiciae1049882d2b4b,
  title = {Mandibular first molars with six root canals.},
  author = {A Martinez-Berna and P Badanelli},
  year = {1985},
  doi = {10.1016/s0099-2399(85)80043-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/3863876/},
  note = {Source identifier: 3863876}
}