Drug development for senile cognitive decline.
D000368:Aged; D000375:Aging; D000818:Animals; D003072:Cognition Disorders / Q000175:diagnosis / Q000188:drug therapy*; D003704:Dementia / Q000175:diagnosis / Q000188:drug therapy*; D004195:Disease Models, Animal; D004358:Drug Therapy / Q000379:methods*; D006801:Humans; D012107:Research Design