Texas Children's Hospital Baylor College of Medicine

Universidade Federal de Minas Gerais and Faculdade Ciências Médicas de Minas Gerais

University of Chicago

State University of Campinas

Professor of Oral Medicine, Newcastle University

Professor, Texas Tech University Health Sciences Center El Paso

Professor, Oral & Maxillofacial Pathology, University of Colorado

Emeritus Professor, University of Texas at Houston

Department of Oral Diagnosis, Piracicaba Dental School, Unicamp

Full Professor of Oral Medicine, School of Dentistry, University of Granada