Funding for this research was provided by:
National Institute on Drug Abuse (K01 DA036751, R01 DA044015)
Wellcome Trust (104036/Z/14/Z)
Article History
First Online: 5 April 2018
Compliance with Ethical Standards
:
: Dr Crist was supported by National Institute on Drug Abuse grant K01 DA036751. Dr Clarke is funded by the Wellcome Trust (Wellcome Trust Strategic Award ‘STratifying Resilience and Depression Longitudinally’ [STRADL] Reference 104036/Z/14/Z). Dr Berrettini was supported by National Institute on Drug Abuse grant R01 DA044015. The funding sources had no role in preparation, review, or approval of the manuscript.
: Drs Crist, Clarke, and Berrettini declare that they have no conflicts of interest.