Funding for this research was provided by:
Austrian Science Fund (I 2361-1327)
Grantová Agentura České Republiky (16-34873 L)
Text and Data Mining valid from 2018-08-13
Received: 24 January 2018
Accepted: 3 August 2018
First Online: 13 August 2018
Ethics approval and consent to participate
: The study protocol and study methodology was approved by ethic committees in Austria (Danube-University Krems; EK GZ 10/2015–2018) and the Czech Republic (Centre of Gerontology, Prague). All participants gave their informed consent; in case of the inability to give written consent, a legal representative had to provide consent.
: Not applicable
: The authors declare that they have no competing interests.
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