Oswald, Kirsten
Graf, Jon S
Littmann, Sten
Tienken, Daniela
Brand, Andreas
Wehrli, Bernhard http://orcid.org/0000-0001-7029-1972
Albertsen, Mads http://orcid.org/0000-0002-6151-190X
Daims, Holger
Wagner, Michael http://orcid.org/0000-0002-9778-7684
Kuypers, Marcel M M
Schubert, Carsten J
Milucka, Jana
Article History
Received: 4 November 2016
Revised: 13 April 2017
Accepted: 21 April 2017
First Online: 6 June 2017
Competing interests
: The authors declare no conflict of interest.