Vogelzangs, N
de Jonge, P
Smit, J H
Bahn, S
Penninx, B W
Article History
Received: 15 June 2015
Revised: 26 February 2016
Accepted: 17 March 2016
First Online: 31 May 2016
Competing interests
: SB is a consultant for Myriad Genetics and a director for Psynova Neurotech. The remaining authors declare no conflict of interest.