Shiban, Ehab
Lange, Nicole http://orcid.org/0000-0002-6614-2795
Rothlauf, Paulina
Jörger, Ann-Kathrin
Wagner, Arthur
Ryang, Yu-Mi
Lehmberg, Jens
Meyer, Bernhard
Article History
Received: 4 January 2019
Revised: 20 April 2019
Accepted: 23 May 2019
First Online: 1 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest affecting this study. The study was completely financed by the Department of Neurosurgery. 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.
: For this type of study, formal consent is not required.