Hartung, Thomas, et al. “[The Formation of a Mediator of Inflammation (TNF-A) by Rat Liver Macrophages in Perfusion Culture] [Article in German]”. ALTEX - Alternatives to Animal Experimentation, vol. 13, no. 1, Feb. 1996, pp. 17-23, https://www.altex.org/index.php/altex/article/view/1647.