EU-ADR healthcare database network vs. spontaneous reporting system database: preliminary comparison of signal detection - Trifiro, G; Patadia, V; Schuemie, MJ; Coloma, PM; Gini, R; Herings, R; Hippisley-Cox, J; Mazzaglia, G; Giaquinto, C; Scotti, L (Studies in Health Technology and Informatics, 2011)