@article{ra j2015study,
  title={Retrospective Study of Association between Displacement of
Maxillary Canine and Tooth Agenesis},
  author={jang e,lee k,an s,song j,ra j},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={39},
  number={5},
  pages={488--492},
  doi = {10.17796/1053-4628-39.5.488},
  year={2015}
}