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Barry-xlovecam · 11-14-2012, 12:59 PM

Beta blockers lower the heartbeat rate. Increased heart rates increase demands on the coronary arterial flow.

11-14-2012, 12:59 PM
Barry-xlovecam It's 42 Industry Role: Join Date: Jun 2010 Location: Global Posts: 18,083	Beta blockers lower the heartbeat rate. Increased heart rates increase demands on the coronary arterial flow.