MODELS OF DRUG SAFETY MONITORING IN ENGLAND, POLAND, ITALY, GERMANY, DENMARK AND UNITED STATES - Siskou, O; Galanis, P; Kouli, E; Tsavalias, K; Kaitelidou, D; Theodorou, M.; Prezerakos, P.; Spinthouri, M; Vafeiadis, J; Kalogeropoulou, M (VALUE IN HEALTH, 2013)