Welcome to the participants: Josep Maria Vilà,  Catalan President at Institute of Oncology; Antoni Mateu, Secretary of Health at Public Health Agency of Catalonia, Generalitat de Catalunya; Elena Andradas, Director of Health Promotion and Public Health, Ministry of Health, Government of Spain; Juan José Rodríguez Sendín, Spanish Council of Medical Colleges and Opening videoconference: Public health impact of e-cigarettes use: risks, benefits, and the tobacco endgame by Simon Chapman, Professor of Public Health, University of Sydney.