Kaineder, K
Birngruber, T
Rauter, G
Obermüller, B
Eichler, J
Münzker, J
Al-Zoughbi, W
Mautner, S I
Torekov, S S
Hartmann, B
Kotzbeck, P
Pieber, T R
Article History
Received: 22 December 2016
Revised: 29 March 2017
Accepted: 2 April 2017
First Online: 25 April 2017
Competing interests
: SST has financial holdings in Novo Nordisk. The remaining authors declare no conflict of interest.