1. Oral and Maxillofacial Pathology and Oral Medicine Unit Department of Stomatology II University of the Basque Country Lejona Spain
2. Special Care Dentistry Centre (CAPE) and Oral Pathology Department of Stomatology University of São Paulo School of Dentistry (USP) São Paulo Brazil
3. Mogi das Cruzes University Mogi das Cruzes Brazil
4. Department of Bioscience and Oral Diagnosis Institute of Science and Technology of São José dos Campos São Paulo State University (Unesp) São José dos Campos Brazil
5. Oral Medicine, Oral Surgery and Implantology Unit MedOralRes Group Universidade de Santiago de CompostelaInstituto de Investigación Sanitaria de Santiago (IDIS) Santiago de Compostela Spain