@misc{indiciaef5b7651ae929,
  title = {Residual lower first premolar extraction space.},
  author = {M E Richardson},
  year = {1990},
  doi = {10.1179/bjo.17.3.229},
  url = {https://pubmed.ncbi.nlm.nih.gov/2207054/},
  note = {Source identifier: 2207054}
}