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Box plots of MIC distributions by penA genotype. N = 678, 351, 332 and 682 for CRO, CPD, CFM and AZM respectively. Boxes indicate the 25th, 50th, and 75th percentiles. Whiskers indicate the lowest datum within 1.5 IQR of the lower quartile, and the highest datum within 1.5 IQR of the upper quartile. Outliers are shown as gray circles. Gray horizontal bars indicate the alert value breakpoint for each antimicrobial.
