1. Bello, P. Y. & Toufik, A. (2002) Phénomènes émergents lies à l’usage de drogues en France en 2001 [Emerging phenomena link to the use of drugs in France in 2001]. Paris: Observatoire Français des Drogues et des Toxicomanies. Available from http://www.ofdt.fr/BDD/publications/docs/tend23.pdf[accessed 26 August 2005].
2. Characteristics of attenders of low-threshold syringe-exchange centres in Switzerland;Benninghoff;Revue D’epidémiologie et de Santé Publique,1998
3. Use of an illegal syringe exchange and injection-related risk behaviours among street-recruited injection drug users in Oakland, California, 1992-95;Bluthenthal;Journal of Acquired Immune Deficiency Syndrome and Human Retrovirology,1998
4. High rates of HIV infections among IDUs participating in needle exchange programs in Montreal: results of a cohort study;Bruneau;American Journal of Epidemiology,1997
5. HIV incidence among injecting drug users in New York City syringe-exchange programs;Des Jarlais;Lancet,1996