MIC values of 174 metallo-β-lactamase-producing Pseudomonas aeruginosa isolates against piperacillin (a), ceftazidime (b), imipenem (c), meropenem (d), biapenem (e), and doripenem (f) in the presence (x axis) or absence (y axis) of ME1071. Plot sizes and numbers in the graph represent the number of strains.