title: A long-term study of the antihypertensive effect of alprenolol.
mesh_terms: D000328:Adult; D000368:Aged; D000526:Alprenolol / Q000627:therapeutic use*; D001795:Blood Pressure Determination; D002752:Chlorthalidone / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D003692:Delayed-Action Preparations; D004341:Drug Evaluation; D004359:Drug Therapy, Combination; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006830:Hydralazine / Q000627:therapeutic use; D006973:Hypertension / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D010919:Placebos; D011187:Posture; D011433:Propranolol / Q000627:therapeutic use; D013997:Time Factors
chemical_list: D003692:Delayed-Action Preparations; D010919:Placebos; D006830:Hydralazine; D000526:Alprenolol; D011433:Propranolol; D002752:Chlorthalidone