1. From the Clinical Epidemiology Center, Research and Development Service, Veterans Affairs St. Louis Health Care System, the Veterans Research and Education Foundation of St. Louis, the Department of Medicine, Washington University School of Medicine in St. Louis, and the Institute for Public Health, Washington University in St. Louis — all in St. Louis (Z.A.-A.); Tufts University School of Medicine, Boston (C.J.R.); and MaineHealth Institute for Research, Scarborough, ME (C.J.R.).