Medic, N
Ziauddeen, H
Ersche, K D
Farooqi, I S
Bullmore, E T
Nathan, P J
Ronan, L
Fletcher, P C
Article History
Received: 14 September 2015
Revised: 16 February 2016
Accepted: 21 February 2016
First Online: 22 March 2016
Competing interests
: ETB is employed half-time by the University of Cambridge and half-time by GlaxoSmithKline (GSK); he holds stock in GSK. The remaining authors declare no conflict of interest.