title: Nasolacrimal complications of Avitene (synthetic collagen).
mesh_terms: D000368:Aged; D003094:Collagen / Q000009:adverse effects*; D003607:Dacryocystitis / Q000601:surgery; D005260:Female; D006488:Hemostasis, Surgical / Q000009:adverse effects; D006801:Humans; D007765:Lacrimal Apparatus / Q000601:surgery*; D008875:Middle Aged; D009296:Nasal Cavity / Q000601:surgery*; D013529:Surgical Wound Dehiscence / Q000209:etiology*
chemical_list: D003094:Collagen