Chemopreventive effect of resveratrol, sesamol, sesame oil and sunflower oil in the Epstein-Barr virus early antigen activation assay and the mouse skin two-stage carcinogenesis - Kapadia, G J; Azuine, M A; Tokuda, H; Takasaki, M; Mukainaka, T; Konoshima, T; Nishino, H (Pharmacol Res, 2002)