1. Pfizer, Groton, Connecticut (B.H., E.T.)
2. Stanford University, Stanford, California (L.T.)
3. Harvard T.H. Chan School of Public Health, Boston, Massachusetts (Z.R.M.)
4. Sanofi, Bridgewater, New Jersey (X.L.)
5. Pfizer, New York, New York (M.R.)
6. Dana-Farber Cancer Institute, Boston, Massachusetts (W.X., T.K.C.)
7. Hinda and Arthur Marcus Institute for Aging Research, Hebrew SeniorLife, Harvard Medical School, Boston, Massachusetts (D.H.K.)
8. Harvard University, Boston, Massachusetts (L.W.)