Which Risk Factors Causally Influence Dementia? A Systematic Review of Mendelian Randomization Studies. Kuźma E, Hannon E, Zhou A, Lourida I, Bethel A, Levine DA, Lunnon K, Thompson-Coon J, Hyppönen E, Llewellyn DJ J Alzheimers Dis. 2018; 64(1):181-193. PMID: 29865062. Abstract Comment Bookmark Recommend Follow Comment | Bookmark | Recommend | Follow