title: Effectiveness of twice-daily dosage of methyldopa in essential hypertension.
mesh_terms: D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D006852:Hydrochlorothiazide / Q000627:therapeutic use; D006973:Hypertension / Q000188:drug therapy* / Q000201:enzymology; D008297:Male; D008750:Methyldopa / Q000008:administration & dosage / Q000627:therapeutic use*; D008875:Middle Aged; D012083:Renin / Q000097:blood
chemical_list: D006852:Hydrochlorothiazide; D008750:Methyldopa; D012083:Renin