Schmack, Roman
Friedrich, Alexandra
Kondratenko, Evgenii V. http://orcid.org/0000-0003-0431-6937
Polte, Jörg
Werwatz, Axel
Kraehnert, Ralph
Article History
Received: 4 September 2018
Accepted: 4 January 2019
First Online: 25 January 2019
Competing interests
: The authors declare no competing interests.