title: Punctal and intracanalicular occlusion--a guide for the practitioner. The College of Optometrists.
authors.affiliation: Department of Optometry and Visual Science, City University, London, UK.
authors.forename: N A
authors.initials: NA
authors.lastname: Barnard
mesh_terms: D003094:Collagen; D006801:Humans; D007765:Lacrimal Apparatus; D019736:Prostheses and Implants; D012828:Silicones; D014985:Xerophthalmia / Q000628:therapy*
chemical_list: D012828:Silicones; D003094:Collagen