1. Department of Oral Health Sciences, Katholieke Universiteit Leuven, Dentistry (Periodontology) University Hospitals Leuven Leuven Belgium
2. Department of Department of Stomatology, Unit of Periodontology Santiago de Compostela University Santiago de Compostela Spain
3. Department of Periodontics and Oral Medicine, School of Dentistry The University of Michigan Michigan USA
4. Centre for Oral Clinical Research, Institute of Dentistry, Faculty of Medicine and Dentistry Queen Mary University of London (QMUL) London UK
5. Center of Translational Medicine, Faculty of Medicine Universidad de la Frontera Temuco Chile
6. Chairman of Center for Research in Regenerative Medicine and Tissue Engineering Concepción Chile
7. Faculty of Dentistry Universidad de Los Andes Santiago Chile