Dörsam, Volker, Andreas Schmeel, Konstantin Chumakov, and Mathias R. Fibi. 1998. “[Alternative for the Neurovirulence Test (NTV) in Primates for Safety-Testing of Poliomyelitis Attenuated Life Virus Vaccine (Sabin): In Vitro Test MAPREC] [Article in German]”. ALTEX - Alternatives to Animal Experimentation 15 (Supp. 1):21. https://www.altex.org/index.php/altex/article/view/2083.