1. Department of Biomaterials; Radboud University Nijmegen Medical Centre; PO Box 9101 6500 HB Nijmegen The Netherlands
2. Department of Implantology and Periodontology; Radboud University Nijmegen Medical Centre; PO Box 9101 6500 HB Nijmegen The Netherlands
3. Department of Nuclear Medicine; Radboud University Nijmegen Medical Centre; PO Box 9101 6500 HB Nijmegen The Netherlands