title: Right atrial ectopic rhythm: (a case report).
mesh_terms: D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000209:etiology; D002908:Chronic Disease; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D011660:Pulmonary Heart Disease / Q000150:complications