Updates are available Correction dated 2022-01-21

Article History

Received: 31 January 2020

Accepted: 21 April 2020

First Online: 1 June 2020

Change Date: 21 January 2022

Change Type: Correction

Change Details: A Correction to this paper has been published:

Change Details: https://doi.org/10.1186/s40479-021-00174-6

Ethics approval and consent to participate

: The study was conducted in accordance with the Declaration of Helsinki, and was approved by the Research Ethics Board of the University of Heidelberg. Subjects provided written informed consent prior to study participation.

: Not applicable.

: The authors declare that they have no competing interests.