Virtaa JJ, Järvenpää T, Heikkilä K, Perola M, Koskenvuo M, Räihä I, Rinne JO, Kaprio J. Midlife alcohol consumption and later risk of cognitive impairment: a twin follow-up study. J Alzheimers Dis. 2010;22(3):939–48. doi: 10.3233/jad-2010-100870. PMID: 20858964.