Signal Detection in Children and Adolescents Using Aggregated Data from Drug Cohorts in Prescription-Event Monitoring.Ferreira, G.L.C.Wilton, L.V.Shakir, S.A.W.Author information1 Drug Safety Research Unit, Southampton, UK2 University of Portsmouth, Portsmouth, UKDrug Safety 29(10):p 911-1010, 2006.Copyright © 2006 Adis Data Information BV