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) Publication Attachment: 93-310.pdf Authors: Schrenk, D, Buchmann, A, Lipp, HP, Brunner, H, Sirma, H, Hagenmaier, H, Gebhardt, R, Bock, KW Year: 1993