Efficacy of cattle encephalon glycoside and ignotin in patients with acute cerebral infarction: a randomized, double-blind, parallel-group, placebo-controlled study oleh Hui Zhang, Chuan-Ling Li, Feng Wan, Su-Juan Wang, Xiu-E Wei, Yan-Lei Hao, Hui-Lin Leng, Jia-Min Li, Zhong-Rui Yan, Bao-Jun Wang, Ren-Shi Xu, Ting-Min Yu, Li-Chun Zhou, Dong-Sheng Fan