title: Historical classics: Editorial.
authors.affiliation: Department of Otolaryngology, Northwestern University, Chicago, Illinois, U.S.A.
authors.forename: Robert C
authors.initials: RC
authors.lastname: Kern
mesh_terms: D055590:Electromagnetic Phenomena; D004724:Endoscopy / Q000266:history* / Q000295:instrumentation; D049673:History, 20th Century; D006801:Humans; D055811:Journal Impact Factor / Q000266:history; D010254:Paranasal Sinus Diseases / Q000175:diagnosis / Q000266:history* / Q000601:surgery; D025321:Surgery, Computer-Assisted / Q000266:history* / Q000295:instrumentation; D014057:Tomography, X-Ray Computed / Q000379:methods