Funding for this research was provided by:
Deutsche Rentenversicherung Bund (8011 - 106 - 31/31.115)
Text and Data Mining valid from 2019-02-15
Received: 11 October 2018
Accepted: 8 February 2019
First Online: 15 February 2019
Ethics approval and consent to participate
: This study was approved by the ethical review board of the German Psychological Society (DGPs) and was conducted in accordance with the 1964 Helsinki Declaration and its later amendments. Written consent was obtained from all individual participants included.
: Not applicable.
: None declared.
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