Mbarek, Hamdi http://orcid.org/0000-0002-1108-0371
van de Weijer, Margot P.
van der Zee, Mathijs D.
Ip, Hill F. http://orcid.org/0000-0003-1991-5019
Beck, Jeffrey J.
Abdellaoui, Abdel
Ehli, Erik A. http://orcid.org/0000-0002-7865-3015
Davies, Gareth E.
Baselmans, Bart M. L.
Nivard, Michel G. http://orcid.org/0000-0003-2015-1888
Bartels, Meike http://orcid.org/0000-0002-9667-7555
de Geus, Eco J. http://orcid.org/0000-0001-6022-2666
Boomsma, Dorret I. http://orcid.org/0000-0002-7099-7972
Article History
Received: 21 June 2018
Revised: 15 November 2018
Accepted: 5 January 2019
First Online: 13 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.