1. Patient exposures from intra-oral radiographic examinations;Alcox;J Am Dent Assoc,1974
2. Clinical radiography in the orthodontic practice;Alpem;Angle Orthod,1984
3. Thyroid radiation dose during panoramic and cephalometric dental x-ray examination;Block;Angle Orthod,1977
4. Comparative performance of x-ray intensifying screens;Burgess;Radiology,1982
5. Christensen's introduction to the physics of diagnostic radiology;Curry,1984