@article{ETD, school = {Certificate in Orthodontics}, author = {Kerr, Allen B.}, url = {http://digitalcollections.ohsu.edu/record/1521}, title = {Cephalometric changes in orthodontically treated class II, division 1 malocclusions with maxillary first and mandibular second premolars extracted}, number = {ETD}, doi = {https://doi.org/10.6083/M4NG4NS7}, recid = {1521}, address = {1982}, }