Larson BL, Ylostalo J, Lee RH, Gregory C, Prockop DJ. Sox11Is Expressed in Early Progenitor Human Multipotent Stromal Cells and Decreases with Extensive Expansion of the Cells. Tissue Engineering Part A. 2010 Nov;16(11):3385–94. doi: 10.1089/ten.tea.2010.0085.