Figure 3
From: Lemon juice has protective activity in a rat urolithiasis model
Amount of calcium in the left kidney. Values represent mean ± SD (μg/g) for six animals in each group. a Values are significantly different from the negative control group: *p < 0.05, **p < 0.01, ***p < 0.001. b Values are significantly different from the positive control group: * p < 0.05, **p < 0.01, ***p < 0.001.