901943.fig.003a
(a)
901943.fig.003b
(b)
901943.fig.003c
(c)
901943.fig.003d
(d)
Figure 3: PLS-DA model results for samples obtained from the plasma of the normal and model groups and analyzed in positive and negative ion modes ( : (a) 2-D plot; (b) 3-D plot; ES-: (c) 2-D plot; (d) 3-D plot).