https://www.ffhdj.com/index.php/ffhd/article/view/68, Edirisinghe, I.; Randolph, J.; Cheema, M.; Tadapaneni, R.; Park, E.; Burton-Freeman, B.; Kappagoda,T.: Effect of grape seed extract on postprandial oxidative status and metabolic responses in men and women with the metabolic syndrome – randomized, cross-over, placebo-controlled study: FFHD: Online ISSN: 2160-2855 Functional Foods in Health & Disease Vol 2 No 12 (2012).