Funding for this research was provided by:
John Templeton Foundation
Article History
First Online: 3 August 2018
Compliance with Ethical Standards
:
: The authors declared no potential conflict of interest with respect to the research, authorship, and/or publication of this article.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institution and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.