Seiler, Andrea, Anke Visan, Ingeborg Pohl, Elke Genschow, Roland Buesen, and Horst Spielmann. 2002. “[Improving the Embryonic Stem Cell Test (EST) by Establishing Molecular Endpoints of Tissue Specific Development Using Murine Embryonic Stem Cells (D3 cells)] [Article in German]”. ALTEX - Alternatives to Animal Experimentation 19 (Supp. 1):55-63. https://altex.org/index.php/altex/article/view/2127.