title: Letter: 169Yb-DTPA cisternography: how many rads does the brain receive?
mesh_terms: D001921:Brain / Q000528:radiation effects*; D002946:Cisterna Magna; D006801:Humans; D004369:Pentetic Acid / Q000008:administration & dosage; D011829:Radiation Dosage; D011877:Radionuclide Imaging / Q000009:adverse effects*; D015018:Ytterbium / Q000008:administration & dosage
chemical_list: D004369:Pentetic Acid; D015018:Ytterbium