Erratum to “Comment on: “Fire in the vein: Heroin acidity and its proximal effect on users’ health” by Ciccarone and Harris” (International Journal of Drug Policy (2016) 27 (182–183) (S0955395915003035) (10.1016/j.drugpo.2015.09.008))

The Publisher regrets that this article is an accidental duplication of an article that has already been published in Int. J. Drug Policy 26 (2015) 1111–1112, http://dx.doi.org/10.1016/j.drugpo.2015.08.009. The duplicate article has therefore been withdrawn. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.