Sariaslan, A
Fazel, S
D'Onofrio, B M
Långström, N
Larsson, H
Bergen, S E
Kuja-Halkola, R
Lichtenstein, P
Article History
Received: 20 July 2015
Revised: 28 January 2016
Accepted: 5 March 2016
First Online: 3 May 2016
Competing interests
: The authors declare no conflict of interest.