title: Subtraction radiography and computer assisted densitometric analyses of standardized radiographs. A comparison study with 125I absorptiometry.
mesh_terms: D015502:Absorptiometry, Photon / Q000379:methods; D000539:Alveolar Process / Q000000981:diagnostic imaging*; D001862:Bone Resorption / Q000000981:diagnostic imaging*; D003201:Computers; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D007457:Iodine Radioisotopes; D010510:Periodontal Diseases / Q000000981:diagnostic imaging; D011856:Radiographic Image Enhancement; D011877:Radionuclide Imaging; D013382:Subtraction Technique
chemical_list: D007457:Iodine Radioisotopes