@misc{indiciae4395a5193927,
  title = {Orthodontic prepayment plans.},
  author = {W D Johnston},
  year = {1969},
  doi = {10.1016/0002-9416(69)90108-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/5250513/},
  note = {Source identifier: 5250513}
}