Toulopoulou, T
van Haren, N
Zhang, X
Sham, P C
Cherny, S S
Campbell, D D
Picchioni, M
Murray, R
Boomsma, D I
Pol, H H
Brouwer, R
Schnack, H
Fañanás, L
Sauer, H
Nenadic, I
Weisbrod, M
Cannon, T D
Kahn, R S
Article History
Received: 18 June 2014
Revised: 1 September 2014
Accepted: 6 October 2014
First Online: 2 December 2014
Competing interests
: The authors declare no conflict of interest.