Funding for this research was provided by:
Niedersächsisches Ministerium für Wissenschaft und Kultur
Text and Data Mining valid from 2020-02-24
Received: 6 August 2019
Accepted: 13 January 2020
First Online: 24 February 2020
Ethics approval and consent to participate
: All interviewees in the study gave their informed consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.