Funding for this research was provided by:
National Institute on Aging (U01 AG016976, R01 AG042475, R01 AG054060, R01 AG057187, P30 AG028383)
Received: 27 November 2018
Accepted: 29 November 2018
First Online: 19 December 2018
Ethics approval and consent to participate
: Research using the National Alzheimer’s Coordinating Center database was approved by the University of Washington Institutional Review Board. Informed consent was obtained from all participants at the individual Alzheimer’s Disease Centers.
: Not applicable
: The authors declare that they have no competing interests.
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