Hypertension in the elderly.
D000368:Aged; D002986:Clinical Trials as Topic; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D006852:Hydrochlorothiazide / Q000627:therapeutic use*; D006973:Hypertension / Q000188:drug therapy*; D008297:Male; D008790:Metoprolol / Q000627:therapeutic use*
D006852:Hydrochlorothiazide; D008790:Metoprolol