@misc{indiciae3f3249ea0a4c,
  title = {Variable-modulus orthodontics.},
  author = {C J Burstone},
  year = {1981},
  doi = {10.1016/0002-9416(81)90192-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/6942654/},
  note = {Source identifier: 6942654}
}