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Bravo MJ, Royuela L, Barrio G, Rodríguez-Arenas MA, de la Fuente L; Grupo de trabajo de Médicos del Mundo para el control de la infección por VIH y las prácticas de riesgo en inyectores de drogas.Bravo MJ, et al. Among authors: barrio g.Gac Sanit. 2004 Nov-Dec;18(6):472-8. doi: 10.1016/s0213-9111(04)72035-x.Gac Sanit. 2004.PMID: 15625046Free article.Spanish.