Funding for this research was provided by:
Horizon 2020 Framework Programme (643398)
Article History
Received: 7 December 2017
Accepted: 21 May 2018
First Online: 15 June 2018
Ethics approval and consent to participate
: Ethical consideration for the study was granted by the superordinate project ‘Euro-healthy’ under grant agreement No 643398.
: The authors declare that they have no competing interests.
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