Text and Data Mining valid from 2020-01-08
Received: 15 March 2019
Accepted: 27 December 2019
First Online: 8 January 2020
Ethics approval and consent to participate
: 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. Institutional review board approval of this retrospective study was obtained (Nr. EA1/306/16 of the Ethics Committee of the Faculty of Medicine of Charité – Universitätsmedizin Berlin). Informed consent was obtained verbally by all participants of this study as this is the standard for non-prospective studies at our institution. This was approved by our IRB (Nr. EA1/306/16).
: Not applicable.
: The author Thomas Picht is an Editorial Board Member of BMC Neurology. The remaining authors declare that they have no competing interest.