title: The influence of lidocaine and iontophoresis on the pain threshold of the human eardrum.
mesh_terms: D000328:Adult; D004837:Epinephrine / Q000494:pharmacology; D006801:Humans; D007478:Iontophoresis; D008012:Lidocaine; D010146:Pain / Q000503:physiopathology*; D012684:Sensory Thresholds / Q000187:drug effects*; D014432:Tympanic Membrane / Q000187:drug effects / Q000503:physiopathology*
chemical_list: D008012:Lidocaine; D004837:Epinephrine