1. William A. Satariano is with the School of Public Health, University of California, Berkeley. Jack M. Guralnik is with the School of Medicine, University of Maryland, Baltimore. Richard J. Jackson is with the School of Public Health, University of California, Los Angeles. Richard A. Marottoli is with the School of Medicine, Yale University, New Haven, CT. Elizabeth A. Phelan is with the School of Medicine, University of Washington, Seattle. Thomas R. Prohaska is with the School of Public Health,...