Stefansdottir, V.
Skirton, H.
Johannsson, O. Th.
Olafsdottir, H.
Olafsdottir, G. H.
Tryggvadottir, L.
Jonsson, J. J. http://orcid.org/0000-0001-5084-8374
Article History
First Online: 24 September 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.