1. Department of Biomaterials; Radboud University Nijmegen Medical Center; Nijmegen the Netherlands
2. Department of Oral and Maxillofacial Surgery, Beijing Stomatological Hospital; Capital Medical University; Beijing China
3. Department of Oral Cell Biology; Academic Centre for Dentistry Amsterdam (ACTA); Amsterdam the Netherlands
4. Department of Oral and Maxillofacial Surgery; VU University Medical Center / Academic Centre for Dentistry Amsterdam; Amsterdam the Netherlands
5. Department of Orthopedic Surgery; VU University Medical Center; Amsterdam the Netherlands