Husedzinovic, Alma
Ose, Dominik
Schickhardt, Christoph
Fröhling, Stefan
Winkler, Eva C
Article History
Received: 28 July 2014
Revised: 19 January 2015
Accepted: 27 January 2015
First Online: 4 March 2015
Competing interests
: The manuscript has been read and approved for submission by all authors. This manuscript has not been published elsewhere in part or in entirety, and is not under consideration by another journal. The authors declare no conflict of interest.