You have access
Rat embryonic stem cells produce fertile offspring through tetraploid complementation
Tian-Da Li, Gui-Hai Feng, Yu-Fei Li, Mei Wang, Jun-Jie Mao, Jia-Qiang Wang, Xin Li, Xue-Peng Wang, Bin Qu, Le-Yun Wang, Xin-Xin Zhang, Hai-Feng Wan, Tong-Tong Cui, Cong Wan, Lei Liu, Xiao-Yang Zhao, Bao-Yang Hu, Wei Li, and Qi Zhou