1. Tuscany Academy of Dental Research (ATRO); Florence Italy
2. Department of Surgery and Translational Medicine; University of Florence; Florence Italy
3. European Research Group on Periodontology (ERGOPERIO); Bern Switzerland
4. Unit of Basic Oral Investigation (UIBO); School of Dentistry; El Bosque University; Bogota Colombia
5. School of Dentistry; Ibirapuera University (Unib); São Paulo Brazil
6. Department of Periodontics; College of Dentistry; The University of Iowa; Iowa City IA