Procyanidin dimer B2 [epicatechin-(4beta-8)-epicatechin] in human plasma after the consumption of a flavanol-rich cocoa - Holt, R R; Lazarus, S A; Sullards, M C; Zhu, Q Y; Schramm, D D; Hammerstone, J F; Fraga, C G; Schmitz, H H; Keen, C L (Am J Clin Nutr, 2002)