title: A trephining technique for the insertion of Lester Jones tubes.
mesh_terms: D006801:Humans; D007440:Intubation; D007765:Lacrimal Apparatus / Q000601:surgery*; D008722:Methods; D009666:Nose / Q000601:surgery*; D011095:Polyethylenes; D013525:Surgical Instruments; D014207:Trephining / Q000295:instrumentation
chemical_list: D011095:Polyethylenes