Affiliations

• ¹ San Francisco Coordinating Center, California Pacific Medical Center Research Institute, San Francisco, CA, USA. Steven.cummings@ucsf.edu.
• ² Department of Epidemiology and Biostatistics, University of California, San Francisco, CA, USA. Steven.cummings@ucsf.edu.
• ³ San Francisco Coordinating Center, California Pacific Medical Center Research Institute, San Francisco, CA, USA.
• ⁴ Robert and Arlene Kogod Center on Aging, Paul F. Glenn Center for the Biology of Aging Research, and Department of Physical Medicine and Rehabilitation, Mayo Clinic, Rochester, MN, USA.
• ⁵ Metabolism and Basic Biology of Aging Directive, Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Medford, MA, USA.
• ⁶ Department of Quantitative Health Sciences, Mayo Clinic, Rochester, MN, USA.