1. Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota
2. Exercise Science and Health Promotion, College of Health Solutions, Arizona State University, Tempe, Arizona
3. Department of Epidemiology, School of Medicine, University of California, Irvine, Irvine, California
4. Native American Community Health Center, Inc., Phoenix, Arizona
5. Division of Research, Kaiser Permanente Northern California, Oakland, California