1. Dentistry Department; San Pablo CEU University; Madrid Spain
2. Section of Graduate Periodontology; Faculty of Odontology; University Complutense; Madrid Spain
3. Fundación Carmen Pardo-Valcarce; Madrid Spain
4. Section of Special Patients in Dentistry; University of Granada; Granada Spain
5. ETEP (Etiology and Therapy of Periodontal Diseases) Research Group; Faculty of Odontology; University Complutense; Madrid Spain