%0 Journal Article
%T Fentanyl in the US heroin supply: a rapidly changing risk environment
%J International journal on drug policy
%D 2017
%A Ciccarone, Daniel
%V 46
%N 
%P 107-111
%X <p>[Abstract unavailable]</p> <p>Language: en</p>
%G en
%I Elsevier Publishing
%@ 0955-3959
%U http://dx.doi.org/10.1016/j.drugpo.2017.06.010