1. Department of Oral and Maxillofacial Surgery, National Dental Centre Singapore, Singapore, Singapore.
2. Department of Implantology and Periodontology, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
3. Department of Biomaterials, Radboud University Nijmegen Medical Center, Nijmegen, The Netherlands.
4. Tissue Regeneration Systems, Inc., Ann Arbor, Michigan.