Husemoen, L L N
Skaaby, T
Thuesen, B H
Grarup, N http://orcid.org/0000-0001-5526-1070
Sandholt, C H
Hansen, T
Pedersen, O
Linneberg, A http://orcid.org/0000-0002-0994-0184
Article History
Received: 4 May 2015
Revised: 28 December 2015
Accepted: 27 January 2016
First Online: 24 February 2016
Competing interests
: The authors declare no conflict of interest.