Yanagisawa E, Casuccio J R, Suzuki M
Ann Otol Rhinol Laryngol. 1981 Jul-Aug;90(4 Pt 1):346-50. doi: 10.1177/000348948109000412.
A simple but reliable method of videotaping the larynx using the Nagashima rigid laryngoscope (telescope) and a low-cost home video color camera is described. Video laryngoscopy using this technique is a useful office procedure. The video material obtained was of high quality and of great value for teaching, voice analysis, preoperative and postoperative evaluation and documentation of various laryngeal disorders.