Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (BMBF 01 EO 08 01)
Text and Data Mining valid from 2020-02-03
Received: 20 September 2019
Accepted: 27 January 2020
First Online: 3 February 2020
Ethics approval and consent to participate
: Ethical approval for ELSA was obtained by the South Central- Berkshire Research Ethics Committee (reference # 12344).
: Not applicable.
: IP, AS, JLR, SK, SH, UG and BS have no conflict of interest to declare.