Spaniol, Kristina http://orcid.org/0000-0003-2560-7960
Witt, Joana
Mertsch, Sonja
Borrelli, Maria
Geerling, Gerd
Schrader, Stefan
Article History
Received: 20 July 2017
Revised: 29 December 2017
Accepted: 8 January 2018
First Online: 1 February 2018
Compliance with ethical standards
:
: All authors certify that they have no affiliations with or involvement in any organisation 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-licencing 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 (name the institution/committee) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.