Management of obstructions of the lacrimal canaliculi with polyethylene tubes; a follow up study.
D005500:Follow-Up Studies; D006801:Humans; D007765:Lacrimal Apparatus; D009301:Nasolacrimal Duct; D020959:Polyethylene; D011095:Polyethylenes
D011095:Polyethylenes; D020959:Polyethylene
NASOLACRIMAL DUCT; POLYETHYLENE