n class="s1">'aseg'</span><span class="p">)</span>
<span class="n">vol</span> <span class="o">=</span> <span class="n">vol_ref</span><span class="o">.</span><span class="n">get_plot_vals</span><span class="p">(</span><span class="n">rois</span><span class="p">,</span> <span class="n">i_keys</span><span class="o">=</span><span class="p">[</span><span class="s1">'.aseg_'</span><span class="p">])</span>

<span class="c1"># Plot just the volume</span>
<span class="n">plot</span><span class="p">(</span><span cla