Kendler, Kenneth S.
Ohlsson, Henrik
Sundquist, Kristina
Sundquist, Jan
Funding for this research was provided by:
National Institute on Drug Abuse (DA030005)
Article History
Received: 17 January 2017
Accepted: 17 May 2017
First Online: 26 May 2017
Compliance with ethical standards
:
: The authors have no conflicts of interest to declare.
: The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. We secured ethical approval for this study from the Regional Ethical Review Board of Lund University (No. 2008/409).