1. Department of Biochemistry 280, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
2. aap Bioimplant—EMCM BV, Nijmegen, The Netherlands.
3. Department of Biomaterials 309, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.