1. Research Group Medical Biotechnology and Bioengineering, Faculty of Applied Natural Sciences, University of Applied Sciences Cologne, Campusplatz 1, 51379 Leverkusen, Germany
2. Institute of Technical Chemistry, Gottfried Wilhelm Leibniz University Hannover, Calinstrasse 3-9, 30167 Hannover, Germany
3. Miltenyi Biotec B.V. & Co. KG, Friedrich-Ebert-Strasse 68, 51429 Bergisch Gladbach, Germany