CD4 and peeling skin syndrome: We further compared the expression levels of Foxp3 and Helios in CD4+CD25+CD161+ and CD4+CD25+CD161− T cells from pSS patients and healthy controls (Supplementary Figures  1 and 2; see Supplementary Material available online at http://dx.doi.org/10.1155/2015/307453) and found that in comparison to their CD161+ or CD161− counterparts from healthy controls, the CD4+CD25+CD161+ or CD4+CD25+CD161− T cells from pSS patients had significantly elevated Foxp3 or Helios expression levels (Supplementary Figures  1 and 2).