Tumour Promotion Induction by Complex Mixtures of 2-4 and 0-1 ortho Polychlorinated Biphenyls in Female Sprague Dawley Rats Publication Attachment: 98-378.pdf Authors: van der Plas, SA, Sundberg, H, van den Berg, H, Scheu, G, Warngard, L, Jenssen, S, Bergman, A, Brouwer, A Year: 1998