Heckmann, Josef G.
Vachalova, Ivana
Haschka, Stefan
Article History
Received: 3 May 2018
Accepted: 12 July 2018
First Online: 21 July 2018
Compliance with ethical standards
:
: The authors declare that there is no conflict of interest.
: This article does not contain any studies with human participants performed by any of the authors.
: For this type of study, formal consent is not required.