title: Virus aetiology of certain cases of lacrimal obstruction.
mesh_terms: D002644:Chickenpox / Q000150:complications; D003231:Conjunctivitis / Q000150:complications; D005500:Follow-Up Studies; D006563:Herpes Zoster Ophthalmicus / Q000150:complications; D006801:Humans; D007635:Keratitis, Dendritic / Q000150:complications; D007767:Lacrimal Duct Obstruction / Q000209:etiology*; D013666:Tears; D014615:Vaccinia / Q000150:complications; D014777:Virus Diseases / Q000150:complications*