1. Division of Preventive Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA (I.-M.L., J.E.B.)
2. Department of Epidemiology (I.-M.L., J.E.B.)
3. Harvard T.H. Chan School of Public Health, Boston, MA. Laboratory of Epidemiology and Population Science, National Institute on Aging, Bethesda, MD (E.J.S.)
4. Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina–Chapel Hill (K.R.E.)
5. Department of Social and Behavioral Sciences (M.K.)
6. Department of Physical Activity Research, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan (M.K.)
7. Department of Family Medicine and Public Health, University of California San Diego (A.Z.L.).