Zipser, Carl Moritz http://orcid.org/0000-0002-4396-4796
Deuel, Jeremy
Ernst, Jutta
Schubert, Maria
von Känel, Roland
Böttger, Sönke
Article History
Received: 18 March 2019
Accepted: 22 April 2019
First Online: 20 May 2019
Compliance with ethical standards
:
: All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; educational grants; participation in speakers’ bureaus; membership, employment, consultancies, stock ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.