AUTHOR=Van Winkle Lon J. , Galat Vasil , Iannaccone Philip M. TITLE=Threonine appears to be essential for proliferation of human as well as mouse embryonic stem cells JOURNAL=Frontiers in Cell and Developmental Biology VOLUME=2 YEAR=2014 URL=https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2014.00018 DOI=10.3389/fcell.2014.00018 ISSN=2296-634X