TY - GEN AU - Jelicic,M AU - Jonker,C AU - Deeg,D J TI - Effect of low levels of serum vitamin B12 and folic acid on cognitive performance in old age: a population-based study SN - 8756-5641 PY - 2002///0613 KW - Aged KW - Aging KW - blood KW - Cognition Disorders KW - Female KW - Folic Acid KW - Humans KW - Male KW - Memory Disorders KW - Middle Aged KW - Netherlands KW - epidemiology KW - Neuropsychological Tests KW - Vitamin B 12 N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1207/S15326942DN2003_1 ER -