Sandin, S http://orcid.org/0000-0001-6994-4884
Schendel, D
Magnusson, P
Hultman, C
Surén, P
Susser, E
Grønborg, T
Gissler, M
Gunnes, N
Gross, R
Henning, M
Bresnahan, M
Sourander, A
Hornig, M http://orcid.org/0000-0001-7572-3092
Carter, K
Francis, R
Parner, E
Leonard, H
Rosanoff, M
Stoltenberg, C
Reichenberg, A
Article History
Received: 6 November 2014
Revised: 25 February 2015
Accepted: 29 April 2015
First Online: 9 June 2015
Competing interests
: The authors declare no conflict of interest.