Sandhöfer, Nadine
Bauer, Julia
Reiter, Katrin
Dufour, Annika
Rothenberg, Maja
Konstandin, Nikola P.
Zellmeier, Evelyn
Tizazu, Belay
Greif, Philipp A.
Metzeler, Klaus H.
Hiddemann, Wolfgang
Polzer, Harald
Spiekermann, Karsten
Article History
Received: 12 January 2016
Accepted: 23 May 2016
First Online: 27 June 2016
Competing interests
: The authors declare no competing financial interests.