Very Small Embryonic-Like Stem Cells Purified from Umbilical Cord Blood Lack Stem Cell Characteristics Danova-Alt, Ralitza ; Heider, Andreas ; Egger, Dietmar ; Cross, Michael ; Alt, Rüdiger Abstract Publication: PLoS ONE Pub Date: April 2012 DOI: 10.1371/journal.pone.0034899 Bibcode: 2012PLoSO...734899D