| web | Loef M, Walach H | Br J Nutr | 2011-07-18 | |
| web | Balenahalli N. Ramesh, T.S. Sa... | J Alzheimers Dis | 2010-09-02 | |
| web | Morris MC, Evans DA | Arch Neurol | 2006-08-01 | |
| web | McCarty MF | Med Hypotheses | 2003-07-01 | |
| web | Srikumar TS, Johansson GK | Am J Clin Nutr | 1992-04-01 |