Funding for this research was provided by:
National Institute on Aging (R01AG034676)
National Center for Advancing Translational Sciences (UL1 TR000135)
Article History
Received: 9 November 2016
Accepted: 6 February 2017
First Online: 16 February 2017
Compliance with ethical standards
: Approval for this study was obtained from the institutional review boards of Mayo Clinic and Olmsted Medical Center. The need for informed consent was waived.
: This study was made possible using the resources of the Rochester Epidemiology Project, which is supported by the National Institute on Aging of the National Institutes of Health under Award Number R01AG034676, and CTSA Grant Number UL1 TR000135 from the National Center for Advancing Translational Sciences (NCATS), a component of the National Institutes of Health (NIH). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
: None.