title: Comparison of three types of ear tips used for impedance audiometry.
mesh_terms: D000328:Adult; D001299:Audiometry / Q000295:instrumentation*; D001309:Auditory Threshold; D005260:Female; D006801:Humans; D008297:Male; D010969:Plastics; D011312:Pressure; D012018:Reflex
chemical_list: D010969:Plastics