AUTHOR=Fu Shanlin , Stove Christophe , Elliott Simon TITLE=Editorial: Advances in Analytical Methods for Drugs of Abuse Testing JOURNAL=Frontiers in Chemistry VOLUME=7 YEAR=2019 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2019.00589 DOI=10.3389/fchem.2019.00589 ISSN=2296-2646