TY - GEN AU - Mirza,Shirwan A TI - Systolic hypertension: combination therapy as one approach to treating a persistent condition SN - 1936-5764 PY - 2007///0622 KW - Adrenergic beta-Antagonists KW - therapeutic use KW - Antihypertensive Agents KW - Humans KW - Hypertension KW - drug therapy N1 - Publication Type: Comment; Letter ER -