1. Universidad Nacional de Colombiaat Bogotá, School of DentistryDepartment of Basic Sciences and Oral Medicine Research Group: INVENDO
2. Center for the Study of Diseases AutoimmunesSchool of Medicine and Health SciencesUniversidad del Rosario at Bogotá Colombia
3. Universidad Nacional de Colombiaat Bogotá, School of ScienceDepartment of Statistics
4. Universidad Nacional de Colombiaat Bogotá, School of DentistryDepartment of Oral HealthResearch Group: Gerodontología