Received: 27 July 2018
Accepted: 3 December 2018
First Online: 18 December 2018
Change Date: 31 January 2019
Change Type: Correction
Change Details: In the original publication of this article , an Author’s Note section is missing in Declaration.
Ethics approval and consent to participate
: The study was approved by the Ethics Commission of the State Medical Council of Hesse [Ethikkommission der Landesärztekammer Hessen] (file reference no. 88/2017).
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.