Funding for this research was provided by:
Europäischer Fonds für regionale Entwicklung (ZS/2016/05/78615)
Received: 3 April 2019
Accepted: 30 July 2019
First Online: 22 August 2019
Ethics approval and consent to participate
: The study protocol, informed consent templates, and questionnaires were reviewed and approved by the ethics committee of the Otto-von-Guericke University Magdeburg (File: 176/17) on 8 January 2018. Changes to the study protocol must be approved by the ethic committee before they may be enacted.The informed consent will be obtained from all study participants by the screening visit.
: This study protocol does not contain any individual personal data in any form. Consent for publication is not applicable.
: Peter R Mertens is co-founder of Medixmind. The other authors declare that they have no competing interests.