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机译:Effects of vitamin B-12 supplementation on neurologic and cognitive function in older people: a randomized controlled trial
London Sch Hyg & Trop Med, Fac Epidemiol & Populat Hlth, London WC1, England;
Univ Oxford, Clin Trial Serv Unit, Oxford, England;
Med Res Council Gen Practice Res Framework, London, EnglandUCL, Med Res Council, Unit Lifelong Hlth & Ageing, London, EnglandKings Coll London, Dept Clin Neurosci, London WC2R 2LS, England;
cognitive; neurologic; older people; vitamin B-12; peripheral and central nerve conduction;