Vecera, Philipp
Holzwarth, Johannes
Edelthalhammer, Konstantin F.
Mundloch, Udo
Peterlik, Herwig http://orcid.org/0000-0002-2113-9920
Hauke, Frank
Hirsch, Andreas http://orcid.org/0000-0002-0399-5096
Article History
Received: 8 March 2016
Accepted: 30 June 2016
First Online: 10 August 2016
Competing interests
: The authors declare no competing financial interests.