Letter: Treatment for hypertension.
D002752:Chlorthalidone / Q000627:therapeutic use*; D004357:Drug Synergism; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D008750:Methyldopa / Q000627:therapeutic use*; D008875:Middle Aged
D008750:Methyldopa; D002752:Chlorthalidone