DR AGIS TSOUROS, MD, PHD, FFPH (UK): International Adviser on Health Policy, Governance and Diplomacy, International Adviser for Global Healthy Cities. Former Director on Policy and Governance for Health and Wellbeing at the World Health Organization, Regional Office for Europe. Former Chairman of the Greek National Board of Public Health. Former President of the Greek Centre for Disease Control. Visiting Professor, Institute for Global Health Innovation, Imperial College, London. Honorary Professor, University of Durham