Text and Data Mining valid from 2019-01-07
Received: 28 July 2018
Accepted: 7 November 2018
First Online: 7 January 2019
Ethics approval and consent to participate
: This research has been approved by the data protection office at the Charité – Universitätsmedizin Berlin on the 9th of June, 2017 and by the ethics committee at the Charité – Universitätsmedizin Berlin on the 21st of September 2017. Anonymity was assured; a consent form was signed by participants who also provided basic demographic data.
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