External dacryocystorhinostomy results.
D003607:Dacryocystitis / Q000601:surgery; D006801:Humans; D007765:Lacrimal Apparatus / Q000601:surgery*; D007766:Lacrimal Apparatus Diseases / Q000601:surgery*; D008722:Methods; D009301:Nasolacrimal Duct / Q000293:injuries / Q000601:surgery*