Svendstrup, M
Allin, K H
Sørensen, T I A
Hansen, T H
Grarup, N http://orcid.org/0000-0001-5526-1070
Hansen, T http://orcid.org/0000-0001-5948-8993
Vestergaard, H http://orcid.org/0000-0003-3090-269X
Article History
Received: 11 July 2017
Revised: 8 September 2017
Accepted: 12 October 2017
First Online: 16 November 2017
Competing interests
: The authors declare no conflict of interest.