<qa>  What is the group 2 of patients receiving?Group 2: Dual blockade of the renin-angiotensin-aldosterone system plus bisoprolol DBB Group - 40 patients will receive, in addition to the basal therapy, ramipril 5 mg, ramipril 10 mg, ramipril 10 mg plus bisoprolol 5 mg and ramipril 10 mg plus bisoprolol 10 mg, sequentially. 