Kircher, Malte
Lapa, Constantin
Article History
First Online: 10 February 2017
Compliance with Ethical Standards
:
: MK and CL declare that they have no conflicts of interest.
: All reported studies/experiments with human or animal subjects performed by the authors have been previously published and were in compliance with all applicable ethical standards (including the Helsinki declaration and its amendments, institutional/national research committee standards, and international/national/institutional guidelines).