Authors: Barrio, G De La Fuente, L Lew, C Royuela, L Bravo, MJ Torrens, M

Citation: G. Barrio et al., Differences in severity of heroin dependence by route of administration: the importance of length of heroin use, DRUG AL DEP, 63(2), 2001, pp. 169-177

Authors: de la Fuente, L Bravo, MJ Lew, C Barrio, G Soriano, V Royuela, L

Citation: L. De La Fuente et al., Prevalence of HIV infection and risk habits in heroin takers of Barcelona,Madrid and Sevilla (Spain). An example of the advantages of focusing studies on drug-takers in spite of intravenous drug users, MED CLIN, 113(17), 1999, pp. 646-651