Overdose prevention in injecting opioid users: The role of substance abuse treatment and training programs Ana Sarasa-Renedo, Albert Espelt, Cinta Folch, Carmen Vecino, Xavier Majó, Yolanda Castellano, Jordi Casabona, M. Teresa Brugal

Gender differences in HIV risk behaviours among intravenous drug users in Catalonia, Spain Cinta Folch, Jordi Casabona, Albert Espelt, Xavier Majó, Mercè Meroño, Victoria Gonzalez, Maria Teresa Brugal

Violence in adolescents: social and behavioural factors Sandra Sousa, Teresa Correia, Elisabete Ramos, Sílvia Fraga, Henrique Barros