L1TD1 Is a Marker for Undifferentiated Human Embryonic Stem Cells Wong, Raymond Ching-Bong ; Ibrahim, Abel ; Fong, Helen ; Thompson, Noelle ; Lock, Leslie F. ; Donovan, Peter J. Abstract Publication: PLoS ONE Pub Date: April 2011 DOI: 10.1371/journal.pone.0019355 Bibcode: 2011PLoSO...619355W