title: Progression of the optic disk as a reference standard in glaucoma.
authors.forename: Nathan
authors.initials: N
authors.lastname: Congdon
mesh_terms: D003941:Diagnostic Techniques, Ophthalmological; D018450:Disease Progression; D005901:Glaucoma / Q000175:diagnosis*; D006801:Humans; D009898:Optic Disk / Q000473:pathology*; D009901:Optic Nerve Diseases / Q000175:diagnosis*; D012015:Reference Standards