1. Molecular Pathology Area; Faculty of Dentistry; Universidad de la República; Montevideo Uruguay
2. Division of Anatomical and Cellular Pathology; Department of Pathology; Iwate Medical University; Iwate Japan
3. Histology Area; Faculty of Dentistry; Universidad de la República; Montevideo Uruguay
4. School of Dentistry; State University of Rio de Janeiro; Rio de Janeiro Brazil
5. Pathology Division; Centro Clínico de Cabeza y Cuello/Hospital Herrera-Llerandi; Guatemala City Guatemala
6. Health Care Department; Universidad Autónoma Metropolitana Xochimilco; Mexico City Mexico