Merriam, Tim http://orcid.org/0000-0001-6277-7892
Kaufmann, Rolf
Ebert, Lars
Figi, Renato
Erni, Rolf
Pauer, Robin
Sieberth, Till
Article History
Accepted: 5 April 2018
First Online: 24 April 2018
Compliance with ethical standards
:
: We know of no conflicts of interest associated with this publication, and there has been no significant financial support for this work that could have influenced its outcome.
: Informed consent was obtained from all individual participants included in the study.