Reprogramming somatic cells to cells with neuronal characteristics by defined medium both in vitro and in vivo oleh Songwei He, Yiping Guo, Yixin Zhang, Yuan Li, Chengqian Feng, Xiang Li, Lilong Lin, Lin Guo, Haitao Wang, Chunhua Liu, Yi Zheng, Chuanming Luo, Qiang Liu, Fuhui Wang, Hao Sun, Lining Liang, Lingyu Li, Huanxing Su, Jiekai Chen, Duanqing Pei, Hui Zheng