Calcium--verapamil interaction on the AV node.
D001283:Atrioventricular Node / Q000187:drug effects*; D002125:Calcium Gluconate / Q000494:pharmacology*; D004562:Electrocardiography; D005942:Gluconates / Q000494:pharmacology*; D006329:Heart Conduction System / Q000187:drug effects*; D006801:Humans; D014700:Verapamil / Q000494:pharmacology*
D005942:Gluconates; D014700:Verapamil; D002125:Calcium Gluconate