FIG. 3.
Mean number of CFU of P. aeruginosa per peg on the MBEC device determined by plating bacteria sonicated from each peg position for biofilms grown for 4 or 24 h, as described in Materials and Methods. The values obtained were compared by analysis of variance and Bartlett’s test for homogeneity of variance. No significant difference was found between rows (P = 0.9982).