van Loo, Karen M. J.
Schaub, Christina
Pitsch, Julika
Kulbida, Rebecca
Opitz, Thoralf
Ekstein, Dana
Dalal, Adam
Urbach, Horst
Beck, Heinz
Yaari, Yoel
Schoch, Susanne
Becker, Albert J.
Article History
Received: 16 March 2015
Accepted: 18 September 2015
First Online: 26 October 2015
Competing interests
: The authors declare no competing financial interests.