. 2020 Jan 1;4(1):igz044. doi: 10.1093/geroni/igz044
© The Author(s) 2020. Published by Oxford University Press on behalf of The Gerontological Society of America.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 5.
Used with permission from The John A. Hartford Foundation.