Qureshi, Bilal M.
Schmidt, Andrea
Behrmann, Elmar http://orcid.org/0000-0001-6794-3669
Bürger, Jörg
Mielke, Thorsten http://orcid.org/0000-0001-9275-3146
Spahn, Christian M. T.
Heck, Martin
Scheerer, Patrick
Article History
Received: 10 July 2017
Accepted: 11 December 2017
First Online: 8 January 2018
Competing interests
: The authors declare no competing financial interests.