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Number of viable biofilm cells recovered following a 24-h exposure to vancomycin, sodium salicylate, and a combination thereof. Each bar represents viable counts obtained from tests in the three independent evaluations. The representative inoculum size (
) was determined for each of the evaluations. 
, vancomycin (4 μg/ml) only; 
, salicylate (5 mM) plus vancomycin (4 μg/ml); 
, salicylate (5 mM) only.
