title: Dacryocystectomy for the treatment of nasolacrimal obstruction in elderly patients treated with beta-blockers.
authors: Efstathios T
authors: ET
authors: Detorakis
authors: Miltiadis K
authors: MK
authors: Tsilimbaris
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000008:administration & dosage*; D000368:Aged; D003608:Dacryocystorhinostomy; D005902:Glaucoma, Open-Angle / Q000188:drug therapy*; D006801:Humans; D009301:Nasolacrimal Duct / Q000601:surgery*
chemical_list: D000319:Adrenergic beta-Antagonists