Figure 3.

Forest plot of risk ratios (RR) for restenosis (≥ 50% diameter stenosis), stratified by measurement method (CFI-based versus visual collateral assessment). Horizontal bars indicate 95% confidence intervals. CCC, coronary collateral circulation; CFI, collateral flow index; CI, confidence interval.

Meier et al. BMC Medicine 2012 10:62   doi:10.1186/1741-7015-10-62
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