Woodtli, Nada
von Wolff, Michael
Bitterlich, Norman
Stute, Petra http://orcid.org/0000-0002-5591-1552
Article History
Received: 19 January 2018
Accepted: 19 April 2018
First Online: 26 April 2018
Compliance with ethical standards
:
: The author(s) declare that they have no competing interests in respect to the presented study.