title: Bilateral injection of contrast medium for dacryocystography.
mesh_terms: D003287:Contrast Media / Q000008:administration & dosage*; D006801:Humans; D007267:Injections / Q000295:instrumentation; D007765:Lacrimal Apparatus / Q000000981:diagnostic imaging*; D011859:Radiography; D013594:Syringes
chemical_list: D003287:Contrast Media