title: Arthur Hartmann (1849-1931).
authors.affiliation: Pappas Ear Clinic, P.C., Birmingham, AL 35233, USA.
authors.forename: D G
authors.initials: DG
authors.lastname: Pappas
mesh_terms: D001299:Audiometry / Q000266:history; D004389:Durable Medical Equipment / Q000266:history; D005858:Germany; D006314:Hearing Loss, Conductive / Q000175:diagnosis / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D010036:Otolaryngology / Q000266:history*