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Figure 1 Effect of angiotensin-converting enzyme inhibitors (ACEi) and calcium channel blockers (CCBs) versus placebo and "more versus less" blood pressure (BP) lowering on cause-specific cardiovascular outcomes. The overall mean BP difference between treatments is shown. Negative values mean lower blood pressure values in the "first listed." CI = confidence interval. Reproduced from the Blood Pressure Lowering Treatment Trialists' Collaboration (2), with permission.
