Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01GX0744)
Text and Data Mining valid from 2019-12-01
Received: 20 May 2019
Accepted: 29 November 2019
First Online: 21 December 2019
Ethics approval and consent to participate
: The study aim, its procedures, consent forms and data handling and protection measures were approved by the ethics committee, Hannover Medical School (No. 5069). The study is registered in the German Clinical Trials Register DRKS-ID: DRKS00000792. Participating patients gave written consent to be interviewed and analyse their data. At any time they could withdraw their consent.
: Not applicable.
: The authors declare that they have no competing interests.