Forbes, S. C., Holroyd-Leduc, J. M., Poulin, M. J., & Hogan, D. B. (2015). Effect of Nutrients, Dietary Supplements and Vitamins on Cognition: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Can Geriatr J.
Chicago-tyylinen lähdeviittausForbes, Scott C., Jayna M. Holroyd-Leduc, Marc J. Poulin, ja David B. Hogan. "Effect of Nutrients, Dietary Supplements and Vitamins On Cognition: A Systematic Review and Meta-Analysis of Randomized Controlled Trials." Can Geriatr J 2015.
MLA-viiteForbes, Scott C., Jayna M. Holroyd-Leduc, Marc J. Poulin, ja David B. Hogan. "Effect of Nutrients, Dietary Supplements and Vitamins On Cognition: A Systematic Review and Meta-Analysis of Randomized Controlled Trials." Can Geriatr J 2015.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.