Microbial and dietary factors associated with the 8-prenylnaringenin producer phenotype: a dietary intervention trial with fifty healthy post-menopausal Caucasian women - Bolca, S; Possemiers, S; Maervoet, V; Huybrechts, I; Heyerick, A; Vervarcke, S; Depypere, H; De Keukeleire, D; Bracke, M; De Henauw, S; Verstraete, W; Van de Wiele, T (Br J Nutr, 2007)