[6 cases of left atrial ectopic rhythm].
D000293:Adolescent; D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac; D002648:Child; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006325:Heart Atria; D006801:Humans; D008297:Male; D008875:Middle Aged