Dacryocystotomy, dacryocystectomy, dacryocystorhinostomy.
D003607:Dacryocystitis; D003608:Dacryocystorhinostomy; D006801:Humans; D007765:Lacrimal Apparatus; D007767:Lacrimal Duct Obstruction
DACRYOCYSTITIS; LACRIMAL APPARATUS; LACRIMAL DUCT OBSTRUCTION