Ebert, T http://orcid.org/0000-0003-1683-9276
Kralisch, S
Wurst, U
Scholz, M
Stumvoll, M
Kovacs, P
Fasshauer, M
Tönjes, A
Article History
Received: 27 September 2014
Revised: 25 July 2015
Accepted: 1 August 2015
First Online: 19 August 2015
Competing interests
: The authors declare no conflict of interest.