Mrs. Terzidou is an expert in the field of drug epidemiology, and has been active in this field since 1984. She has been a member of the staff of the Greek Focal Point since 1993, where she was head of the epidemiology section. She was also a member of the core research group for a number of general population and students drug use national surveys and a member of the ESPAD and the HBSC national research team. She is experienced in national and European project leadership and administration. She was the project leader for Greece in three twinning projects, one in Cyprus, in 2004 and two in Turkey, 2004-2006 and 2009-2011. She also participated as a trainer in the EMCDDA PHARE project for the candidate countries during 2001-2003.