induction of differentiation by retinoic acid led to a significant inhibition of colony formation in hsc variant ( from 1522 +/- 60 to 523 +/- 20/10 ( 4 ) cells plated ) and in the oci variant ( from 628 +/- 20 to 185 +/- 33 colonies/10 ( 4 ) cells plated ) .
C1516343
induction
C0007634
cells