title: [Electrophysiological studies of the accessory pathways by transesophageal atrial pacing].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000889:Anti-Arrhythmia Agents / Q000494:pharmacology; D002304:Cardiac Pacing, Artificial; D002648:Child; D004562:Electrocardiography; D004947:Esophagus; D005260:Female; D006329:Heart Conduction System / Q000187:drug effects / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis / Q000503:physiopathology*
chemical_list: D000889:Anti-Arrhythmia Agents