Sellgren, C M
Kegel, M E
Bergen, S E
Ekman, C J
Olsson, S
Larsson, M
Vawter, M P
Backlund, L
Sullivan, P F
Sklar, P
Smoller, J W
Magnusson, P K E
Hultman, C M
Walther-Jallow, L
Svensson, C I
Lichtenstein, P http://orcid.org/0000-0003-3037-5287
Schalling, M
Engberg, G
Erhardt, S
Landén, M
Article History
Received: 20 May 2015
Revised: 22 October 2015
Accepted: 26 October 2015
First Online: 15 December 2015
Competing interests
: The authors declare no conflict of interest.