The effect of 24-week continuous intake of quercetin-rich onion on age-related cognitive decline in healthy elderly people: a randomized, double-blind, placebo-controlled, parallel-group comparative clinical trial.
J Clin Biochem Nutr. 2021 Sep;69(2):203-215. doi: 10.3164/jcbn.21-17. Epub 2021 May 21. J Clin Biochem Nutr. 2021. PMID: 34616111 Free PMC article.