title: Nonpenetrating glaucoma surgery.
authors.affiliation: Department of Ophthalmology, University of Cologne, Germany.
authors.forename: G K
authors.initials: GK
authors.lastname: Krieglstein
mesh_terms: D005901:Glaucoma / Q000601:surgery*; D006801:Humans; D013508:Ophthalmologic Surgical Procedures