Funding for this research was provided by:
National Institute on Aging (R21-AG057289, R33-AG057289)
Received: 24 February 2020
Accepted: 6 June 2020
First Online: 18 June 2020
Ethics approval and consent to participate
: The study is approved by the Kaiser Permanente Colorado Institutional Review Board and by the Johns Hopkins University Institutional Review Board.
: Not applicable.
: The authors declare that they have no competing interests.