Haltner, Eleonore, Stefan Schmitz, Christiane Gindorf, and Jörg Ruoff. “[In Vitro Permeability Studies As Substitute for in Vivo Studies - Which Requirements Have to Be met?] [Article in German]: LINZ 2000”. ALTEX - Alternatives to animal experimentation 18, no. 1 (February 1, 2001): 81–87. Accessed May 4, 2024. https://altex.org/index.php/altex/article/view/1380.