Separated at birth? The functional and molecular divergence of OLIG1 and OLIG2. - Meijer DH; Kane MF; Mehta S; Liu H; Harrington E; Taylor CM; Stiles CD; Rowitch DH; Meijer, Dimphna H; Kane, Michael F; Mehta, Shwetal; Liu, Hongye; et al. (Nature Reviews Neuroscience, 2012)