Generating iPS Cells from MEFS through Forced Expression of Sox-2, Oct-4, c-Myc, and Klf4 G- E5 r) j$ V6 k; W) V( G! L! n
G. Grant Welstead, Tobias Brambrink, Rudolf Jaenisch! `7 c5 k4 @! q3 W# z
Whitehead Institute for Biomedical Research, Massachusetts Institute of Technology & n% T0 s. f1 ~3 Z; y& ] 2 K+ }; u* k8 h0 O