Leist, M., Bremer, S., Brundin, P., Hescheler, J., Kirkeby, A., Krause, K.-H., … Hentze, H. (2008). The biological and ethical basis of the use of human embryonic stem cells for in vitro test systems or cell therapy. ALTEX - Alternatives to Animal Experimentation, 25(3), 163–190. https://doi.org/10.14573/altex.2008.3.163