Schneider, Stefan
Stone, Arthur A.
Funding for this research was provided by:
National Institute on Aging (R01 AG042407)
Article History
Accepted: 6 April 2016
First Online: 12 April 2016
Compliance with ethical standards
:
: Stefan Schneider declares that he has no conflict of interest. Arthur A. Stone is a Senior Scientist with the Gallup Organization.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.