Figure 2. In vivo security of WSQL. The indexes of (A) heart, (B) liver, (C) spleen and (D) kidney. (E) H&E staining of heart, liver, spleen and kidney. Magnification: 200 ×, scale bar: 100 μm. The data are presented as the mean ± SEM. ### p < 0.001 vs. Ctrl group, * p < 0.05 vs. BPH group. n = 8 for (A–D) and n = 3 for (E).