Hegelund, Josefine Nymark http://orcid.org/0000-0002-5663-9503
Lauridsen, Uffe Bjerre
Wallström, Sabá Victoria
Müller, Renate http://orcid.org/0000-0003-4029-240X
Lütken, Henrik http://orcid.org/0000-0003-3719-8324
Article History
Received: 22 March 2016
Accepted: 23 January 2017
First Online: 3 February 2017
Conflict of interest
: The authors declare that they have no conflict of interest.