| Hans-Günter Meyer-Thompson | International
USA. Number of US Counties with Drug Poisoning Deaths Involving Heroin Increases Nearly Five-Fold from 2000 to 2014
A Publication of the National Drug Early Warning System (NDEWS) Issue 3, 17.072017
https://ndews.umd.edu/sites/ndews.umd.edu/files/pubs/ndews-news-issue-3-july-2017.pdf