Janowitz, D http://orcid.org/0000-0003-4324-9298
Schwahn, C
Borchardt, U
Wittfeld, K
Schulz, A
Barnow, S
Biffar, R
Hoffmann, W
Habes, M http://orcid.org/0000-0001-9447-5805
Homuth, G
Nauck, M
Hegenscheid, K
Lotze, M
Völzke, H
Freyberger, H J
Debette, S
Grabe, H J
Article History
Received: 28 July 2014
Accepted: 13 August 2014
First Online: 14 October 2014
Competing interests
: The authors declare no conflict of interest.