Comerma-Steffensen, Simon
Kun, Attila
Hedegaard, Elise R.
Mogensen, Susie
Aalkjaer, Christian
Köhler, Ralf
Mønster Christensen, Birgitte
Simonsen, Ulf http://orcid.org/0000-0002-2169-7666
Article History
Received: 24 November 2016
Accepted: 31 May 2017
First Online: 19 June 2017
Competing Interests
: The authors declare that they have no competing interests.