Stoehr, C G
Stoehr, R
Wenners, A
Hartmann, A
Bertz, S
Spath, V
Walter, B
Junker, K
Moch, H
Hinze, R
Denzinger, S
Bond, E E
Bond, G L
Bluemke, K
Weigelt, K
Lieb, V
Nolte, E
Fornara, P
Wullich, B
Taubert, H
Wach, S
Article History
Received: 15 October 2015
Accepted: 30 November 2015
First Online: 29 February 2016
Competing interests
: The authors declare no conflict of interest.