901943.fig.004a
(a)
901943.fig.004b
(b)
901943.fig.004c
(c)
901943.fig.004d
(d)
Figure 4: PLS-DA model results for the samples obtained from the urine of the normal and model groups and analyzed in positive and negative ion modes (ES+: (a) 2-D plot; (b) 3-D plot; ES-: (c) 2-D plot; (d) 3-D plot).