title: Electrocardiographic changes in treatment of uncomplicated essential hypertension.
mesh_terms: D000328:Adult; D000368:Aged; D004562:Electrocardiography; D005260:Female; D006331:Heart Diseases / Q000209:etiology; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies