Bizzarro, S.
Laine, M. L.
Buijs, M. J.
Brandt, B. W.
Crielaard, W.
Loos, B. G.
Zaura, E.
Article History
Received: 25 September 2015
Accepted: 23 December 2015
First Online: 1 February 2016
Competing interests
: The authors declare no competing financial interests.