@misc{indiciaeaca4f3b14c32, title = {An introduction to centroid cephalometrics.}, author = {J S Johnson and R J Hubbold}, year = {1982}, doi = {10.1179/bjo.9.1.32}, url = {https://pubmed.ncbi.nlm.nih.gov/6948572/}, note = {Source identifier: 6948572} }