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Squared weights for the first latent variable (LV 1) for PLS-DA models for phage types 1 and 1b (left panel) and phage types 6 and 6a (right panel) obtained using S. Enteritidis OMP extracts. The main biochemical spectral regions examined were lipids (I), proteins (II), phospholipids, DNA, and RNA (III), polysaccharides (IV), and the fingerprint region (V).
