K
Kruse, Gina Rae, Russell Barbour, Robert Heimer, Alla V. Shaboltas, Olga V. Toussova, Irving F. Hoffman, and Andrei P. Kozlov. "
Drug choice, spatial distribution, HIV risk, and HIV prevalence among injection drug users in St. Petersburg, Russia."
Harm reduction journal 6 (2009): 22.
Abstract