A Follow-up Study on a Randomized,Single-blind Control of King‘s Brain Pills in Treatment of Memory Disorder in Elderly People with MCI in a Beijing Community Clinical study on a randomized, double-blind control of Shenwu gelatin capsule in treatment of mild cognitive impairment Effects of Huannao Yicong decoction on cognitive function and expression of Bcl-2 and Bax protein of hippocampus in cognitive impairment rats Effects of Weinaokang capsule on intracephalic cholinergic system and capability of scavenging free radicas in chronic cerebral hypoperfusion rats