Krapohl, E
Euesden, J
Zabaneh, D
Pingault, J-B
Rimfeld, K
von Stumm, S
Dale, P S
Breen, G
O'Reilly, P F
Plomin, R
Article History
Received: 20 May 2015
Revised: 6 July 2015
Accepted: 14 July 2015
First Online: 25 August 2015
Competing interests
: The authors declare no conflict of interest.