Supplementary Figure Legends 1-6 from Lin&lt;sup&gt;−&lt;/sup&gt;Sca-1&lt;sup&gt;+&lt;/sup&gt;CD49f&lt;sup&gt;high&lt;/sup&gt; Stem/Progenitors Are Tumor-Initiating Cells in the &lt;i&gt;Pten&lt;/i&gt;-Null Prostate Cancer Model