1 Oral Medicine Service, Hospital Señor del Milagro, Sarmiento Avenue 557, PC: 4400 Salta, Argentina. Electronic address: i_molinaavila@hotmail.com.
2 Oral Medicine Service, Hospital Señor del Milagro, Sarmiento Avenue 557, PC: 4400 Salta, Argentina. Electronic address: juanpimentelsola@hotmail.com.
3 Private Service of Oncological Pathology and Cytodiagnosis, Zuviria 740, PC: 4400 Salta, Argentina. Electronic address: gvivis@hotmail.com.
4 Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Haya de la Torre SN, Ciudad Universitaria, PC: 5000 Córdoba, Argentina. Electronic address: ggilligan@unc.edu.ar.