@misc{indiciaeb22f48792854, title = {Simplified and standarized bisecting-angle technic for dental radiography.}, author = {W J Updegrave}, year = {1967}, doi = {10.14219/jada.archive.1967.0368}, url = {https://pubmed.ncbi.nlm.nih.gov/5234119/}, note = {Source identifier: 5234119} }