Cole, J H
Ritchie, S J
Bastin, M E
Valdés Hernández, M C
Muñoz Maniega, S
Royle, N
Corley, J
Pattie, A
Harris, S E
Zhang, Q
Wray, N R
Redmond, P
Marioni, R E
Starr, J M
Cox, S R
Wardlaw, J M
Sharp, D J
Deary, I J
Article History
Received: 4 October 2016
Revised: 18 January 2017
Accepted: 17 February 2017
First Online: 25 April 2017
Competing interests
: The authors declare no conflict of interest.