Figure 6

The OPLS-DA score plot of the toad toxin samples collected from twenty-two geographical origins. Each point represented an individual sample, and the points of the same color (blue or red) were similar in terms of bufogenins composition.
The OPLS-DA score plot of the toad toxin samples collected from twenty-two geographical origins. Each point represented an individual sample, and the points of the same color (blue or red) were similar in terms of bufogenins composition.