1. Department of Periodontics and Oral Medicine School of Dentistry University of Michigan Ann Arbor Michigan
2. Graduate Implant Dentistry Loma Linda University Loma Linda California
3. Urban Regeneration Institute Budapest Hungary
4. Private Clinic Aachen Germany
5. Private Clinic Madrid Spain
6. Department of Surgical, Microsurgical, and Medical Sciences, Dentistry Unit University Hospital of Sassari Sassari Italy
7. Gonzalez+Solano Atelier Dental Madrid Spain
8. Private Clinic BSC Verona Italy
9. ETEP (Etiology and Therapy of Periodontal Diseases) Research Group University Complutense Madrid Spain
10. Section of Graduate Periodontology, Faculty of Odontology University Complutense of Madrid Madrid Spain
11. Department of Oral Surgery University Clinic of Dentistry, Medical University of Vienna Vienna Austria