title: Effect of verapamil on retrograde atrioventricular nodal conduction in the human heart.
mesh_terms: D000328:Adult; D000368:Aged; D001283:Atrioventricular Node / Q000187:drug effects* / Q000502:physiology; D002304:Cardiac Pacing, Artificial; D003864:Depression, Chemical; D004562:Electrocardiography; D004594:Electrophysiology; D005260:Female; D006329:Heart Conduction System / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014700:Verapamil / Q000494:pharmacology*
chemical_list: D014700:Verapamil