1. ORALMED Research Group, Department of Dental Clinical Specialties, School of Dentistry Complutense University Madrid Spain
2. Rheumatology Service Hospital Puerta de Hierro Madrid Spain
3. Department of Dental Clinical Specialties, School of Dentistry Complutense University Madrid Spain
4. Rheumatology Service Hospital Gregorio Marañón Madrid Spain
5. Rheumatology Service Hospital Severo Ochoa Madrid Spain
6. Rheumatology Service Hospital Madrid Sanchinarro Madrid Spain