title: New laser ruler instrument for making measurements through an endoscope.
authors.affiliation: Northwestern University Medical School, Chicago, IL, USA.
authors.forename: G D
authors.initials: GD
authors.lastname: Herzon
authors.forename: D L
authors.initials: DL
authors.lastname: Zealear
mesh_terms: D006801:Humans; D020704:Laryngoscopes; D053685:Laser Therapy / Q000295:instrumentation*