New dyes' higher costs cause controversy.
D004396:Coloring Agents; D003287:Contrast Media; D003365:Costs and Cost Analysis / Q000639:trends; D003952:Diagnostic Imaging / Q000191:economics*; D006748:Hospital Departments / Q000191:economics*; D011872:Radiology Department, Hospital / Q000191:economics*; D014481:United States