@misc{indiciae0ed6b388853f,
  title = {Comparison between guided and freehand preparation.},
  author = {L Mollersten},
  year = {1989},
  doi = {10.1016/0022-3913(89)90298-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/2668506/},
  note = {Source identifier: 2668506}
}