Rashidi, Ali
Lilla, Nadine
Skalej, Martin
Sandalcioglu, I. Erol
Luchtmann, Michael http://orcid.org/0000-0002-9947-9095
Funding for this research was provided by:
Projekt DEAL
Article History
Received: 8 September 2020
Revised: 16 December 2020
Accepted: 8 January 2021
First Online: 25 January 2021
Compliance with ethical standards
:
: The authors below 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 nonfinancial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.
: The presented study was conducted in compliance with the national legislation and the code of ethical principles for medical research involving human subjects of the world medical association (Declaration of Helsinki). The collection, analysis and publication of retrospective clinical data is generally approved by the ethics committee of the Medical Faculty of the Otto-von-Guericke University of Magdeburg. The study was approved and registered by the institutional review board (IRB) of the Medical Faculty of the Otto-von-Guericke University of Magdeburg (Register#: R0320). Necessity for patient’s informed consent was waived by the IRB.
: The Author transfers to Springer (respective to owner if other than Springer and for U.S. government employees: to the extent transferable) the non-exclusive publication rights and he warrants that his/her contribution is original and that he/she has full power to make this grant. The author signs for and accepts responsibility for releasing this material on behalf of any and all co-authors. This transfer of publication rights covers the non-exclusive right to reproduce and distribute the article, including reprints, translations, photographic reproductions, microform, electronic form (offline, online) or any other reproductions of similar nature.
: Not applicable.