1. Kaiser Permanente Bernard J. Tyson School of Medicine, Pasadena, California (H.D.N.)
2. Oregon Health & Science University, Portland, Oregon (A.C., R.M.J., K.B.E., C.A., R.G., R.F.)
3. Oregon Health & Science University and Portland State University School of Public Health, Portland, Oregon, and Instituto Nacional de Salud Pública, Centro de Investigación en Salud Poblacional, Cuernavaca, México (B.D.)
4. University of Southern Maine Muskie School of Public Service, Portland, Maine (K.A., A.B.).