title: A new method of evaluating lacrimal drainage.
mesh_terms: D006801:Humans; D007765:Lacrimal Apparatus / Q000502:physiology; D007767:Lacrimal Duct Obstruction / Q000175:diagnosis*; D008722:Methods; D009883:Ophthalmic Solutions; D011877:Radionuclide Imaging / Q000295:instrumentation; D013667:Technetium
chemical_list: D009883:Ophthalmic Solutions; D013667:Technetium