Yamamoto, T.
,
Dargan, P. I.
Dines, A.
Yates, C.
Heyerdahl, F.
Hovda, K. E.
Giraudon, I.
Sedefov, R.
Wood, D. M. http://orcid.org/0000-0002-7826-7237
Funding for this research was provided by:
DPIP/ISEC Programme of the European Union
Article History
Received: 1 May 2018
Revised: 5 July 2018
Accepted: 5 July 2018
First Online: 31 July 2018
Compliance with Ethical Standards
: Ethical approval was obtained by each centre to collect the data as part of Euro-DEN project.
: PID and DMW work with the European Monitoring Centre for Drugs and Drug Addiction and the UK Advisory Council for the Misuse of Drugs. The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.