Don C Des Jarlais, Michael Marmor, Denise Paone, Stephen Titus, Qiuhu Shi, Theresa Perlis, Benny Jose, Samuel R Friedman,
HIV incidence among injecting drug users in New York City syringe-exchange programmes The Lancet. ,vol. 348, pp. 987- 991 ,(1996) ,
10.1016/S0140-6736(96)02536-6