title: Letter: Tongue test for pacemakers.
mesh_terms: D001674:Bioelectric Energy Sources; D004567:Electrodes, Implanted / Q000592:standards; D006334:Heart Function Tests; D006801:Humans; D008722:Methods; D009203:Myocardial Infarction / Q000175:diagnosis; D010138:Pacemaker, Artificial; D014059:Tongue