1. Department of Biomaterials; Radboud University Nijmegen Medical Center; PO Box 9101 6500 HB Nijmegen The Netherlands
2. EMCM B.V.; Middenkampweg 17, 6545 CH Nijmegen The Netherlands
3. NOBIPOL, Department of Biotechnology; NTNU Norwegian University of Science and Technology; Sem Saelands vei 6/8, NO-7491 Trondheim Norway
4. Bender Analytical Holding B.V.; Beukstraat 73, 3581 XE, Utrecht The Netherlands