1. Harvard T.H. Chan School of Public Health, Boston, Massachusetts (K.M.E.)
2. Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania (C.A.D.)
3. University of Texas Health Science Center at Houston, Houston, Texas (M.E.F.)
4. University of California, Davis, Davis, California (D.L.M.)
5. Colorado School of Public Health, Aurora, Colorado (J.M.S.)