Supplementary Figure 4 from Higher Frequencies of GARP&lt;sup&gt;+&lt;/sup&gt;CTLA-4&lt;sup&gt;+&lt;/sup&gt;Foxp3&lt;sup&gt;+&lt;/sup&gt; T Regulatory Cells and Myeloid-Derived Suppressor Cells in Hepatocellular Carcinoma Patients Are Associated with Impaired T-Cell Functionality