Promotion of Preneoplastic Rat Liver Foci with 2,3,7,8-Tetrachlorodibenzo-p-dioxin, 1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin and a Defined Mixture of 49 Polychlorinated Dibenzo-p-dioxins (PCDDs) by dioxin5_wp | Aug 8, 2018