1. Epidemic Intelligence Service, Centers for Disease Control and Prevention, Atlanta, GA (S.L.J.)
2. National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Chamblee, GA (S.L.J., M.E.C., L.Z., S.M.C.K., R.M.)
3. IHRC, Inc., Atlanta, GA (L.Z.)
4. National Center for Health Statistics, Centers for Disease Control and Prevention, Hyattsville, MD (A.L.T., C.-Y.W., T.-C.C.)
5. National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD (J.W., C.M.L.).