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Efficacy of tablet huperzine-A on memory and cognition in patients with benign senescent forgetfulness
Xu Sisun, Xie Haibao, Du Zunming, Tong Zhenhua, Shi Qichang, Lu Keming, Li Shulan, Lin Bing
Chinese Journal of Clinical Pharmacology and Therapeutics . 1997, (1): 1 -3 .