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. 2020 Mar 9;10:4338. doi: 10.1038/s41598-020-61328-0

Figure 4.

Figure 4

Light-microscope evaluations of drug penetration depth in pigskin samples for saline (A) and from groups MB10 (B) and MB20 (C) for single- or dual-frequency US sonication. (D) Quantification of the penetration depths of Evans blue in panels A–C (n = 5 per group) (***p < 0.001, **p < 0.01, *p < 0.05). Data are mean and SD values.