title: The influence of previous lumbar puncture and pneumoencephalography on the incidence of unsuccessful radioisotope cisternography.
mesh_terms: D006801:Humans; D007457:Iodine Radioisotopes; D009192:Myelography; D011011:Pneumoencephalography / Q000009:adverse effects*; D011877:Radionuclide Imaging; D012711:Serum Albumin, Radio-Iodinated; D013129:Spinal Puncture / Q000009:adverse effects*; D013667:Technetium
chemical_list: D007457:Iodine Radioisotopes; D012711:Serum Albumin, Radio-Iodinated; D013667:Technetium