title: Punctal occlusion with collagen implants.
authors: J W
authors: JW
authors: Redmond
mesh_terms: D003094:Collagen; D003608:Dacryocystorhinostomy; D015352:Dry Eye Syndromes / Q000601:surgery; D006801:Humans; D019736:Prostheses and Implants
chemical_list: D003094:Collagen