title: A versatile way of instilling 99mTc-pertechnetate for nuclear dacryocystography.
mesh_terms: D006801:Humans; D007765:Lacrimal Apparatus; D011877:Radionuclide Imaging / Q000379:methods*; D013667:Technetium / Q000008:administration & dosage*
chemical_list: D013667:Technetium