title: "Subtraction distension macrodacryocystography, with simultaneous intubation-injection in the four canaliculi using an infusion pump".
mesh_terms: D006801:Humans; D007440:Intubation; D007767:Lacrimal Duct Obstruction / Q000000981:diagnostic imaging*; D011859:Radiography; D013382:Subtraction Technique