Fig. 6.

Calculated energy coefficients and associated $p$ values from the maximum overlap discrete wavelet transform from the forward (a) and backward (b) SHG from the ${\mathrm{AP}}^{+/+}$ and ${\mathrm{AP}}^{-/-}$ glands. There are no statistical differences in the forward direction, where in contrast there are differences in the backward SHG between the ${\mathrm{AP}}^{+/+}$ and ${\mathrm{AP}}^{-/-}$ at low levels, corresponding to small differences in the distribution of small structures in the tissues, consistent with the increased segmented features in the ${\mathrm{Dcn}}^{-/-}$ in Fig. 5(a).