Once-daily metoprolol for hypertension.
D000959:Antihypertensive Agents; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D008790:Metoprolol / Q000008:administration & dosage / Q000627:therapeutic use*; D010349:Patient Compliance; D011412:Propanolamines / Q000627:therapeutic use*; D011897:Random Allocation
D000959:Antihypertensive Agents; D011412:Propanolamines; D008790:Metoprolol