Funding for this research was provided by:
European Union Seventh Framework Programme (613257)
Article History
Received: 21 February 2018
Accepted: 16 April 2018
First Online: 9 May 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: We hereby declare that we complied with all ethical standards in conducting the research. No individual data from human subjects were collected in the analyses conducted in this meta-analytic review.