AUTHOR=Specka Michael , Kuhlmann Thomas , Sawazki Jürgen , Bonnet Udo , Steinert Renate , Cybulska-Rycicki Monika , Eich Helmut , Zeiske Benita , Niedersteberg Antje , Schaaf Luzia , Scherbaum Norbert TITLE=Corrigendum: Prevalence of Novel Psychoactive Substance (NPS) Use in Patients Admitted to Drug Detoxification Treatment JOURNAL=Frontiers in Psychiatry VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2021.681542 DOI=10.3389/fpsyt.2021.681542 ISSN=1664-0640