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Research Article

All-trans Retinoic Acid Induces CD4+CD25+FOXP3+ Regulatory T Cells by Increasing FOXP3 Demethylation in Systemic Sclerosis CD4 + T cells

Received 9 November 2017; Revised 3 February 2018; Accepted 18 February 2018

Academic Editor: Jacek Tabarkiewicz