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Score scatter plots of (a) principal component analysis (PCA) and (b) orthogonal projections to latent structures discriminant analysis (OPLS-DA) for INS-1 832/13 cells exposed to arsenicals and for unexposed controls (Ctrl). (c) PCA and (d) OPLS-DA for islets exposed to arsenicals and unexposed controls (Ctrl). Dotted ovals indicate samples from the same phenotypic group that clustered separately from other groups.
