Vahl, Julius Malte
Friedrich, Juliane
Mittler, Susanne
Trump, Sonja
Heim, Lisanne
Kachler, Katerina
Balabko, Liubov
Fuhrich, Nicole
Geppert, Carol-Immanuel
Trufa, Denis Iulian
Sopel, Nina
Rieker, Ralf
Sirbu, Horia
Finotto, Susetta
Article History
Received: 30 June 2017
Revised: 3 August 2017
Accepted: 30 August 2017
First Online: 10 October 2017
Competing interests
: The authors declare no conflict of interest.