Funding for this research was provided by:
(1UM1AI126619, 1UM1AI126620, R33AI116194)
National Institute on Aging (R01AG061066)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (245954/2012)
James B. Pendleton Charitable Trust
Received: 12 June 2020
Accepted: 12 November 2020
First Online: 23 November 2020
Ethics approval and consent to participate
: The study was approved by the UC San Diego and the San Diego VA Healthcare System institutional review boards. All participants gave written informed consent for participating.
: Not applicable.
: The authors declare no competing interests.