@article{ref1,
title="Commentary on Mehta et al. (2012): Natural history of injecting drug use",
journal="Addiction",
year="2012",
author="Hickman, Matt and Vickerman, Peter and Degenhardt, Louisa",
volume="107",
number="2",
pages="359-360",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0965-2140",
doi="10.1111/j.1360-0443.2011.03741.x",
url="http://dx.doi.org/10.1111/j.1360-0443.2011.03741.x"
}