Electrical alternation in pericardial effusion.
D001145:Arrhythmias, Cardiac; D004194:Disease; D004560:Electricity; D004562:Electrocardiography; D006331:Heart Diseases; D006801:Humans; D010490:Pericardial Effusion; D010496:Pericardium
ELECTROCARDIOGRAPHY; PERICARDIUM/diseases