Ahne, Winfried. “[An in Vitro Test System for Evaluation of Human-Immunotoxicological Actions of Polychlorinated Biphenyls (PCB)] [Article in German]”. ALTEX - Alternatives to animal experimentation 16, no. 2 (May 1, 1999): 84–86. Accessed May 3, 2024. https://altex.org/index.php/altex/article/view/1464.