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Effect of addition of clavulanic acid (10 μL of 1,000 μg/mL) to the zones of inhibition of the three carbapenem disks. Top row (left to right): imipenem, meropenem, and ertapenem disks without clavulanic acid. Bottom row (left to right): imipenem, meropenem, and ertapenem disks with clavulanic acid.
