Editors' Pick Paraoxonase 1, B Vitamins Supplementation, and Mild Cognitive Impairment. Perła-Kaján J, Włoczkowska O, Zioła-Frankowska A, Frankowski M, A Smith D, de Jager CA, Refsum H, Jakubowski H J Alzheimers Dis. 2021 Jun 01; 81(3):1211-1229. PMID: 33935094. Abstract