Benjamin Neelon, S E
Schou Andersen, C
Schmidt Morgen, C
Kamper-Jørgensen, M
Oken, E
Gillman, M W
Sørensen, T I A
Article History
Received: 19 April 2014
Revised: 13 July 2014
Accepted: 29 July 2014
First Online: 19 September 2014
Competing interests
: The authors declare no conflict of interest.