title: Letter: Radiation dose to the brain from 169Yb-DTPA in cisternography.
mesh_terms: D001921:Brain; D001927:Brain Diseases / Q000175:diagnosis; D002946:Cisterna Magna; D006801:Humans; D011829:Radiation Dosage; D011868:Radioisotopes; D011877:Radionuclide Imaging / Q000009:adverse effects*; D012306:Risk; D015018:Ytterbium
chemical_list: D011868:Radioisotopes; D015018:Ytterbium