Petruskevicius, I
Ludvigsen, M
Hjortebjerg, R
Sørensen, B S
Kamper, P
Vase, M
Oestgaard, L G
Nielsen, B
Honoré, B
Bjerre, M
Rabinovich, G A
d'Amore, F A
Article History
First Online: 23 May 2016
Competing interests
: The authors declare no conflict of interest.