. 2010 Dec 24;39(Suppl 2):ii29–ii37. doi: 10.1093/ije/dyq210
Published by Oxford University Press on behalf of the International Epidemiological Association. © The Author 2010; all rights reserved.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.5/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 1.
HIV sentinel surveillance data for drug users, 1995–2009