Hohberger, Bettina http://orcid.org/0000-0002-2546-5504
Welge-Lüßen, Ulrich-Christoph
Lämmer, Robert
Article History
Received: 8 August 2017
Revised: 22 December 2017
Accepted: 28 December 2017
First Online: 15 January 2018
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.For this type of study, formal consent is not required.