Supplementary Figures 1-6 from Selective Depletion of CD4&lt;sup&gt;+&lt;/sup&gt;CD25&lt;sup&gt;+&lt;/sup&gt;Foxp3&lt;sup&gt;+&lt;/sup&gt; Regulatory T Cells by Low-Dose Cyclophosphamide Is Explained by Reduced Intracellular ATP Levels