Dreber, Helena http://orcid.org/0000-0001-6479-3749
Thorell, Anders
Reynisdottir, Signy
Hemmingsson, Erik
Funding for this research was provided by:
Karolinska Institute
Article History
First Online: 13 November 2018
Compliance with Ethical Standards
:
: The study was approved by the Stockholm Regional Ethical Review Board (2012/1217-31/5 and 2017/1887-32).
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from all individual participants included in the study.