@misc{indiciae60be0cb53995,
  title = {Second-premolar extraction in clinical practice.},
  author = {N de Castro},
  year = {1974},
  doi = {10.1016/0002-9416(74)90174-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/4520840/},
  note = {Source identifier: 4520840}
}