PT - JOURNAL ARTICLE AU - Christopher P L H Chen AU - Vincent C T Mok TI - Marriage and risk of dementia: systematic review and meta-analysis of observational studies AID - 10.1136/jnnp-2017-317178 DP - 2017 Oct 31 TA - Journal of Neurology, Neurosurgery & Psychiatry PG - jnnp-2017-317178 4099 - http://jnnp.bmj.com/content/early/2017/10/30/jnnp-2017-317178.short 4100 - http://jnnp.bmj.com/content/early/2017/10/30/jnnp-2017-317178.full