title: Intubation of nasolacrimal duct with polythene tube.
mesh_terms: D000328:Adult; D002648:Child; D003607:Dacryocystitis / Q000601:surgery*; D006801:Humans; D007440:Intubation / Q000009:adverse effects; D007765:Lacrimal Apparatus / Q000601:surgery*; D008722:Methods; D011095:Polyethylenes
chemical_list: D011095:Polyethylenes