title: An analogue variable dotting device for use in colour scan displays.
mesh_terms: D003116:Color; D007457:Iodine Radioisotopes; D011877:Radionuclide Imaging / Q000295:instrumentation*; D013667:Technetium; D013961:Thyroid Gland
chemical_list: D007457:Iodine Radioisotopes; D013667:Technetium