Saman Warnakulasuriya is Professor Emeritus at King’s College London and has been Director of the WHO Collaborating Centre on Oral Cancer since 2005. He is a Past President of the British Dental Association (Metropolitan Branch). Dr. Warnakulasuriya has served on several expert working groups of the International Agency for Research on Cancer (IARC) to evaluate carcinogenicity of substances to humans. He has delivered numerous keynote lectures at international Oral Medicine, Pathology, and Oncology conferences and was on the organizing committee and co-chaired the Global Oral Cancer Forum in New York in 2016. He is a global expert on the epidemiology and risk factors on oral cancer, developed the nomenclature of oral potentially malignant disorders, and has authored more than 250 scientific articles as well as two books, including most recently the Springer book Squamous Cell Carcinoma: Molecular Therapeutic Targets. He is a member of the editorial board of Oral Oncology and Editor-in-Chief of Translational Research on Oral Oncology (Sage Publishing) and also served as Deputy Editor of Oral Diseases from 1995 to 2005. Dr. Warnakulasuriya has received an OBE from Her Majesty the Queen for services to Medicine and in 2015 was awarded the IADR's Distinguished Scientist Award for Oral Medicine & Pathology. He is a Fellow of King's College London.
John S. Greenspan is Distinguished Professor-Emeritus of Oral Pathology in the Department of Orofacial Sciences and Associate Dean-Emeritus for Global Oral Health in the School of Dentistry at University of California, San Francisco (UCSF). He is also Distinguished Professor-Emeritus of Pathology in the School of Medicine and a leading participant in the UCSF Global Health Sciences Program. He is founding Director of the UCSF Oral AIDS Center and of the UCSF AIDS Specimen Bank. Dr. Greenspan is a Past-President of the American Association for Dental Research (AADR) and of the International Association for Dental Research (IADR). He was founding President of the IADR Global Oral Health Inequalities Research Network (IADR-GOHIRN) and founding Director of the International Sjögren’s Syndrome Registry (SICCA). He is a Fellow of King's College London. He has received the American Association for Dental Research (AADR) Distinguished Scientist Award (2010) and the American Dental Association’s triennial ADA Gold Medal Award for Dental Research (2012). Dr. Greenspan has made major contributions to global HIV research and care. He has published over 300 papers and four books on oral aspects of AIDS, oral pathology, and immunopathology.