@article{ETD,
      school = {Certificate in Orthodontics},
      author = {Chapman, Gary E.},
      url = {http://digitalcollections.ohsu.edu/record/1195},
      title = {A photocephalometric technique for determining hard and  soft tissue relationships of the face},
      number = {ETD},
      doi = {https://doi.org/10.6083/M4GH9G2F},
      recid = {1195},
      address = {1989},
}